Question

read the excerpt from act 2 of a dolls house.
rank: the bigger a thing it is the better. i cant conceive what it is you mean. do tell me. havent i your confidence?
nora: more than anyone else. i know you are my truest and best friend, and so i will tell you what it is. well. doctor rank, it is something you must help me to prevent. you know how devotedly, how inexpressibly deeply torvald loves me; he would never for a moment hesitate to give his life for me.
rank: leaning towards her nora-do you think he is the only one-?
nora: with a slight start the only one-?
rank: the only one who would gladly give his life for your sake.
what inference does this excerpt best support?
nora realizes that she can no longer ask doctor rank for help because he is in love with her.
nora realizes that she can trust only doctor rank because he has confessed his love for her.
doctor rank is willing to risk his life for nora because he wants to compete with helmer.
doctor rank has confessed his love because he thinks that doing so will help her with her problem.

Explanation:

In the excerpt, Rank's comment "Nora—do you think he is the only one—?" and "The only one who would gladly give his life for your sake" implies his own feelings for Nora. Nora's reaction "with a slight start" shows she realizes Rank's love. This makes her understand she can't ask him for help as it would be inappropriate given his romantic feelings.

Answer:

Nora realizes that she can no longer ask Doctor Rank for help because he is in love with her.