Which was the first to decrease?
a) number of american troops in vietnam
b) north vietnamese willingness to accept casualties
c) number of bombing missions against the north
d) domestic support for the war in the us

from this list of options, the first to decrease was "number of bombing missions against the north". this was followed by domestic support for the war and then troop levels.

answer; i believe the above statement is (true);

hello,

your answer whould be d