Answer:
C. Mythology plays an important role in naming planets.
Explanation:
This is the topic sentence that best relates to the supporting details. In this topic sentence, we build a connection between mythology and the names of planets. This introduces the idea that the two topics are strongly connected. The supporting details develop this idea, by explaining how Mercury is named after the messenger of the Roman gods.
In terms of the first question, "They" would be an objective pronoun, but it should be noted that this does not have to be so. for the second, the answer is "my".
Aliens abduct cows and people into their spaceships
Or the kindnapper will abduct the little girl if no one is watching out for him
