A Person Recently Was Diagnosed with Social Anxiety Disorder

A person recently was diagnosed with social anxiety disorder. A BEST guess is that the person is in:

A) elementary school and is more likely than average to have a close relative with social anxiety disorder.
B) high school and is more likely than average to have a close relative with social anxiety disorder.
C) elementary school and is less likely than average to have a close relative with social anxiety disorder.
D) high school and less likely than average to have a close relative with social anxiety disorder.