Walter Is 10 Years Old and Has a Mental Age

Multiple Choice

Walter is 10 years old and has a mental age of 8,based on the Stanford-Binet Intelligence Scale.Alfred is 12 years old and has a mental age of 8,based on the Stanford-Binet Intelligence Scale.Which statement best describes this situation,if you are using the intelligence quotient to compare the two boys

A)  Both boys would be considered equally intelligent. 
B)  Walter would be considered more intelligent than Alfred. 
C)  Alfred would be considered more intelligent than Walter. 
D)  The scores cannot be meaningfully compared because the boys are not the same age.