Another psychologist further divided g factor into fluid and crystallized intelligence. Raymond Cattell claimed fluid intelligence is based on logic and crystallized is based on knowledge or the ability to use one’s knowledge. French psychologist Albert Binet devised the first standardized intelligence test in 1905. It compared an individual score to scores of children of his or her age. Later devised by Stanford university, the intelligence scale has five sections: fluid reasoning, knowledge, quantitative reasoning, visual-spatial processing, and working memory.

What does crystallized mean as used in paragraph 2?
Responses
A Taken a definite formTaken a definite form
B Flowing freelyFlowing freely
C Remembered betterRemembered better
D Kept separately

A Taken a definite form