Summer Is Studying for a Test for Her Child and Youth

Summer is studying for a test for her Child and Youth Worker program.She has decided to wear a certain perfume while she studies and she will wear the same perfume when she writes the test.Why is she doing this?

A) The smell of the perfume calms her test anxiety.
B) She likes how the perfume smells.
C) She hopes the perfume will attract the attention of a fellow student she has a crush on.
D) Smell is associated with memory and it can help us recall information.