If People of Different Generations Took the Same IQ Test

Multiple Choice

If people of different generations took the same IQ test, standardized long ago and not restandardized, today's young adults would score, on the average:

A) higher than their parents or grandparents.
B) higher than their parents but lower than their grandparents.
C) about the same as their parents and grandparents.
D) lower than their parents and about the same as their grandparents.