<span>A and C are correct. The Stamp act, as well as some other acts, effectively taxed everty piece of document that had to be sent somewhere, which is something the colonists didn't want since they had no representation in the parliament. The Boston Massacre helped because it motivated many people to start supporting independence due to the cruelty of the British king and the British army that was shown during the Massacre. </span>
Postwar striking workers were often portrayed as communists, since many believed they wanted to "share" the wealth that was coming over the country at the time.
The demand curve slopes downward because of diminishing marginal utility, and also because of the substitution and income effects.