Sonia works as a lab research assistant at Frost Labs, which conducts trials for cosmetic products such as sprays, dyes, ointments, soaps, and the like. She joined the firm right out of college and has been working there for almost two years now. Which of the following, if true, would most strengthen the argument that Sonia is experiencing cognitive dissonance?

A) She believes that cosmetics help boost women's self-confidence.
B) She believes that testing products on animals is an unethical practice.
C) She majored in pharmacology as part of her master's degree program in college.
D) She recently received a positive performance review from her supervisor.
E) She is confounded by the fact that the cosmetic industry rakes in almost $7 billion annually.