The correct answer is B.
The first two sentences are establishing characteristic shared by both petroleum and coal. The word "however" is used to contrast the similarities already presented with the differences that will be stated in the following sentences.
D. 1 and 3.
Text-to-test is not correct, the three main connections are: text-to-self, text-to-text, and text-to-world.
In the first I think its grow them and in the second I believe it is harm the plants hope this helped :)
<span>D. all of the above
hope it helps
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