In a nationwide survey of college freshman in the United States, how many reported they had participated in a political demonstration?

Panic disorders affects up to _ of the population at some point in life. It is more common in women by a factor of about 2 to 1.

What will be an ideal response?

Children under the age of _____ rarely ever cooperated, and when they did it seemed more accidental than planned

A) 1 B) 2 C) 3 D) 4