Nikki Has Just Taken an IQ Test and Wants to Know

Multiple Choice

Nikki has just taken an IQ test and wants to know what exactly intelligence is. The person who tested her says he believes intelligence is one thing that cuts across virtually all tasks one completes. This core ability is

A) gainful loss (gl) .
B) general mental age (gm) .
C) mental giftedness (mg) .
D) general intelligence (g) .
E) mental age.