Jerry and Kerry Are 10-Year-Old Twins

Multiple Choice

Jerry and Kerry are 10-year-old twins. They have performed about the same in all school subjects up to the present time. It would be reasonably safe to predict that

A) Jerry has a higher IQ than Kerry and will shortly begin to outperform Kerry in all middle and high school subjects.
B) starting in high school, Kerry will begin to outperform Jerry in all subjects that require intensive memorization.
C) Kerry will fail miserably at any task involving spatial skills, starting in tenth grade.
D) Jerry will outperform Kerry slightly in mathematical complex problem-solving starting in high school.