Answer:
A. their
Explanation:
Their is correct because it is "their" business group.
Answer:
Machines have eliminated low-skill jobs because they have done the work the people used to be doing themselves. For example the cotton gin, replaced people having to pluck cotton off of bushes.
Explanation:
The correct answer is B. Because a one-word refrain is less difficult than a long refrain.
The refrain in Poe's 'The Raven' consists of one word only because of its brevity (shortness). This is what Poe wrote in his <em>The Philosophy of Composition </em>(a text about how he went about writing this poem):
<em>Since its application was to be repeatedly varied it was clear that the refrain itself must be brief [...] This led me at once to a single word as the best refrain.</em>
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