It affects the narrator's tone in a piece of writing.
Answer:
B)
Explanation:
The reader unerstands the characters motivation
Answer:
Harriet Beecher Stowe believed that slavery ought to be abolished.
Explanation:
Stowe was the author of the novel <em>Uncle Tom's Cabin, </em>which was a major turning point for the abolitionist movement. Just by the fact that she wrote a book concerning that slavery was a sin and the evils about it, one can infer that she believed slavery should be abolished.
Madagascar ( growing vanilla crop).
Vanilla pods fetch a high price. Madagascar has right conditions for growing and harvesting these crops.

Context clues are clues in the text that surround a word. You can use them to understand the meaning of the word.
Another example besides the one provided is “She thought the computer was profitless, but it turned out to be very <em>valuable</em>.”
Using context clues such as the word “<em>valuable</em>,” you can get a good idea of what the word “profitless” means.