Which Piece of Evidence Does NOT Support the Existence of G

Multiple Choice

Which piece of evidence does NOT support the existence of g?

A) Some tests of intelligence increase steadily with age, whereas others do not.
B) Overall scores on intelligence tests correlate positively with achievement test scores.
C) Intelligence tests correlate with people's knowledge of subjects they have not studied in school.
D) Children who do well on one intellectual task tend to do well on other intellectual tasks.