What Does the Term Ageism Refer To

What does the term ageism refer to?

A) thinking that older people are of greater value than younger people and structuring society around the young-old
B) thinking that older people are of greater value than younger people and providing more social benefits to older people as a result
C) thinking of older people in terms of negative stereotypes and structuring society around the young-old
D) thinking of older people in terms of negative stereotypes and structuring society around the young