When top computer scientists explored why the percentage of women in computer science declined rapidly in the 1980s, one of their key findings was:

a. Most females not encouraged to code on home computers by their parents
b. Most females did not get adequate mathematical training in high school to prepare for computer science coursework
c. Most females were denied entry to colleges that had computer science programs on the basis of their gender
d. Most females did not want to take classes in computer science