Which claim is the narrowest and most focused?
A. Mandatory voting makes it harder for extremists to get elected in Australia; it should be required in the United States.
B. Standardized tests are often difficult for students, and they are a tried-and-true way to assess one's skills.
C. There are a number of steps the government should take to help veterans readjust to civilian life.
D. Zoos do not provide adequate habitats for elephants, nor do orangutans thrive in captivity.