What Was the Primary Cause for an Increase in the Public's

What was the primary cause for an increase in the public's support for a military invasion of Iraq during the six-month period leading to the start of the war?

A) the inability of the United Nations to discover strong evidence of weapons of mass destruction
B) mainstream media coverage of the actions of the Iraqi government
C) grassroots efforts by conservative groups that argued it was necessary for greater national security
D) the Bush administration's efforts to press the case for war
E) election-year posturing on national security issues by congressional candidates for office