Question

excerpt from the importance of being earnest
scene scene
the importance of being earnest is a comedy of mistaken identities. the main character, jack, appears to all of his acquaintances to be a professional and serious man—because he pretends to have a younger brother, ernest, whose mischievous behavior requires jack to frequently travel to london. in reality, this fictional brother is jack’s excuse to escape from the burdensome obligations of his life in order to be free and irresponsible.
in this scene, jack’s niece, cecily, and her governess, miss prism, are discussing jack and his “brother” in the garden of jack’s country home.
scene
garden at the manor house. a flight of grey stone steps leads up to the house. the garden, an old-fashioned one, full of roses. time of year, july. banked chairs, and a table covered with books, are set under a large yew-tree.
miss prism discovered seated at the table. cecily is at the back watering flowers.
1 miss prism. calling. cecily, cecily! surely such a utilitarian occupation as the watering of flowers is rather misselthwaite’s duty than yours? especially at a moment when intellectual pleasures await you. your german grammar is on the table. pray open it at page fifteen. we will repeat yesterday’s lesson.
2 cecily. coming over very slowly. but i don’t like german. it is not at all a becoming language. i know perfectly well that i look quite plain after my german lesson.
3 miss prism. child, you know how anxious your guardian is that you should improve yourself in every way. he laid particular stress on your german, as he was leaving for town yesterday—indeed, he always lays stress on your german when he is leaving for town.
4 cecily. dear uncle jack is so very serious! sometimes he is so serious that i think he cannot be quite well.
5 miss prism. crossing her hands. your guardian enjoys the best of health, and his gravity of demeanour is especially to be commended in one so comparatively, so—(she checks herself) —so unconnected with the temptations of town as he is. i know no one who has a keener sense
miss prism. (shaking her head.) i do not think that even i could produce any effect on a character that according to his own brother’s admission is incurably weak and vacillating.
read the dictionary entry
vacillating adj. uncertain in purpose or action
synonyms: swaying, unstable, indecisive, volatile
when word is the most precise replacement for vacillating?
a. swaying
b. unstable
c. indecisive
d. volatile

Explanation:

To find the most precise replacement for "vacillating" in the context (Miss Prism talking about a brother's attention being weak and vacillating), we analyze the synonyms. "Vacillating" means uncertain in purpose/action.

• "Swaying" (A) is more about physical movement.
• "Unstable" (B) can refer to physical or general instability, not just decision - making.
• "Indecisive" (C) directly relates to uncertainty in making decisions or taking action, which fits the context of attention being uncertain in purpose (about a matter, likely related to decisions or actions regarding attention).
• "Volatile" (D) is about sudden changes, often in emotions or substances, not matching the context of uncertain purpose/action related to attention. So "indecisive" is the most precise.

Answer:

C. indecisive