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When North Vietnam acted against South Vietnam and sent troops into it in the early 1960s, Congress authorized the president to escalate the conflict.
<h3>What happened after North Vietnam attacked a U.S. Warship?</h3>
The Gulf of Tonkin incident saw the North Vietnamese navy attack a U.S. warship.
This led to the Johnson administration asking the U.S. Congress for permission to escalate the conflict which was granted to them.
Find out more on the Gulf of Tonkin incident at brainly.com/question/15593184.
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The best way to measure public opinion is through opinion polls - B
With opinion polls you get an idea what is the general idea about a certain topic from the public, as you usually get a high enough sample to deduce the relevant information.
To answer your second question I would say it is either B or C as being a sole proprietor usually makes you subjec to being a small business or you're forced to use factors of production less efficiently.
Answer
Taking land, mass murder, or just plain kicking them out.
Explanation:
you take your pick