Emily Constantly Suffered from Severe Headaches and Blurred Vision

Multiple Choice

Emily constantly suffered from severe headaches and blurred vision. At the age of fourteen, she was diagnosed with migraine. Her neurologist explained to her that women were more likely than men to suffer from such headaches. In the context of the nature-nurture debate, Emily's neurologist is most likely to support the theory that:

A) sex reassignment should be encouraged.
B) adult behavior influences children.
C) men have lower immunity than women.
D) biology shapes behavior.
E) cross-cultural variations in behavior exist.