In January 1968, How Did Typical Americans Feel About Continued

In January 1968, how did typical Americans feel about continued United States involvement in the war in Vietnam?

A) that the war was immoral and that the United States should withdraw immediately.
B) that the government should be conducting the war more vigorously and should commit more American ground troops.
C) generally supportive or ambivalent, wanting to get out but not wanting to give up.
D) in favor of the use of tactical nuclear weapons so that the U.S. could win without endangering American soldiers.
E) unconcerned, because the economy was good and Vietnam was far away.