D, because when you have two nouns, the verb you should use goes for the noun closest to the verb.
Answer: B : They help build up the tension towards an onmious conclusion.
Explanation: I just took the test
The Pilgrims were mentally prepared to bear and overcome any trouble that might come to them in the harsh environment, as they believed those were temptations that God lays on them. When faced with a disease and hunger during the first winter, they didn't despair. The only seven people who didn't get sick took over all the work.
<span>In the 1910s and 1920s the southern Plains was "the last frontier of agriculture" according to the government, when rising wheat prices, a war in Europe, a series of unusually wet years, and generous federal farm policies created a land boom – the Great Plow-Up that turned 5.2 million acres of thick native grassland into wheat fields. Newcomers rushed in and towns sprang up overnight.</span>
