Sarah and Carrie,the Same Age,were Administered the Luria-Nebraska Neuropsychological Test

Sarah and Carrie,the same age,were administered the Luria-Nebraska neuropsychological test battery.Sarah graduated with a Ph.D. ,while Carrie did not complete high school.Assuming all other factors equal,the scores they receive on the Luria-Nebraska

A) should differ.Sarah should score higher based on education.
B) should differ.Carrie should score higher as it is not based on education.
C) should not differ since education level is controlled for.
D) It is impossible to predict the differences from the information provided.