Which would be the best concluding sentence for this paragraph?

C. These similarities and differences make the presence of life on Mars a possibility.

Explanation:

this sentence^ is the best conclusion for the paragraph. the other ones do not make as much sense.

early in the paragraph, we can read the sentence: There is, therefore, a likelihood that life may exist there in the future.

it states the same idea as answer c.

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in macbeth, banquo, who in real life had willing in the murder of king duncan, is portrayed as a loyal subject of the king himself. many analysts believe that shakespeare had done this in order to king james, who supposedly was a direct descendant of banquo himself.

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