Question

which is the best definition of the bold word as it is used in the sentence?
thora felt the helmet on her head. her transformation was complete. i guess i
look pretty different right now, she thought.
in math, a process by which one figure, expression, or function is converted into another
the genetic alteration of a cell by introduction of dna
a metamorphosis during the life cycle of an animal
a thorough or dramatic change in form or appearance

Explanation:

The word "transformation" in the sentence means a thorough or dramatic change in form or appearance. The context of the sentence, where Thora's helmet - related transformation is complete, aligns with the idea of a significant change in form.

Answer:

A. A thorough or dramatic change in form or appearance