Context: Read the description of a trait.
Martha has a scar on her right elbow.
What information supports the conclusion that Martha acquired this trait?
A. Martha's scar is on her right elbow. Her father also has a scar on his right elbow.
B. Martha's sister has a bruise from falling on her elbow.
C. Martha's scar was caused by an accident. She cut her arm when she fell off her bicycle.
From the given choices, pick the correct answer and respond by indicating the letter of the correct option.

C