Grades in elementary school would be a measure of one's

A) achievement.
B) intelligence.
C) reaction range.
D) motivation.

Reaction Range

The concept that genetic factors set certain limits on cognitive, emotional, and personality development, but environmental factors determine where within these limits individuals will fall.

Achievement

The accomplishment of a task or goal through effort, skill, or courage, often recognized and valued by society or the individual's personal standards.

Motivation

The internal and external factors that stimulate desire and energy in people to be continually interested and committed to a job, role, or subject, or to make an effort to attain a goal.