Which main idea do President Barack Obama's inaugural speech and Henry David Thoreau's "Civil Disobedience" have in common?

A. People are not aware of the serious challenges they face.
B. In order to solve problems, people must be willing to work.
C. To learn about other cultures, people must travel to new places.
D. To solve problems in the world, people must depend on their leaders.

Question

Which main idea do President Barack Obama's inaugural speech and Henry David Thoreau's "Civil Disobedience" have in common?

 		A.	People are not aware of the serious challenges they face.
 		B.	In order to solve problems, people must be willing to work.
 		C.	To learn about other cultures, people must travel to new places.
 		D.	To solve problems in the world, people must depend on their leaders.