Task: Class Definition Understanding (ontology: Sciences/Biology)

Which of the following definitions best describes 'mascara'?

A. A romantic relationship involving three people.
B. A cosmetic substance used on the eyelashes.
C. A cosmetic product applied on the eyelids and under the eyes to add depth and dimension, complement their color, make them appear larger, or to simply draw attention to them.
D. A cosmetic product used to define and line the eyes.

Answer: A cosmetic substance used on the eyelashes.