Fiona Is 8 Years Old and Has a Mental Age

Fiona is 8 years old and has a mental age of 10, based on the Stanford-Binet Intelligence Scale. Denise is 10 years old and has a mental age of 12, based on the Stanford-Binet Intelligence Scale. Which of the following is true if you are using an intelligence quotient to compare the girls?

A) Fiona would be considered more intelligent than Denise.
B) Denise would be considered more intelligent than Fiona.
C) The scores could not be meaningfully compared because the girls are not the same age.
D) Both girls would be considered equally intelligent.