Many great mathematicians make their contributions to their field when they are in their __________, a period in which many people excel in terms of __________ intelligence.
A) 20s or early 30s; fluid
B) 50s or early 60s; crystallized
C) 20 or early 30s; crystallized
D) 50s or early 60s; fluid
E) late 30s; crystallized

Question

Quizplus · Accepted Answer

Fluid intelligence typically peaks in a person's 20s or early 30s, which is when many great mathematicians make significant contributions to their field. Fluid intelligence refers to the ability to reason and think flexibly.

Many Great Mathematicians Make Their Contributions to Their Field When