The <em>Gulf of Tonkin incident </em>was a perceived unprovoked attack on the U.S. Navy destroyers, Maddox and Turner Joy which gave President Johnson the justification he needed to escalate the Vietnam war, which he did after presenting the incident to Congress.
During President Johnson's presidency, there developed a discrepancy between what the government said in public statements and what they actually did as was reported by several media houses. This led to the coining of the term, the<em> Credibility Gap</em>.
The answer is letter C. The progressive Era wanted to change
the political outlook as well as create a government that would be beneficial
to the citizens of the United States. They created laws to stop big bosses in
saloons as well as promote women suffrage in the United States