What Is the Best Summary of Research Examining the Relationship

Multiple Choice

What is the best summary of research examining the relationship between temperament and intelligence?

A) Temperament is not related to intelligence.
B) Those with easy or difficult temperaments are more intelligent than those with a slow-to-warm-up temperament.
C) Only those with easy temperaments had an advantage when it came to scores on intelligence tests.
D) Contrary to expectations, the highest average intelligence scores were seen in those with difficult temperaments.