PLEASE HELP!
Which sentence uses the word etymology correctly, according to the information in the dictionary entry?

Etymology- the study of the origin of a word

A. The etymology of the recipe told Kara about the people who use it

B. Studying etymology convinced Ken to purse a career in law enforcement

C. The etymology of the disease revealed that it was highly contagious

D. Ella loved wild life and was fascinated by the etymology of butterfly