In sentence 10 (reproduced below), the writer is considering deleting the underlined parenthetical text.

And while the Sun may well have had a twin at some point (a 2017 study of the Perseus molecular cloud suggests that most stars like the Sun were
formed with companions), most experts now agree that if Nemesis ever existed, it broke free of the solar system early in the Sun's history, long before
there was life on Earth, and thus could not have figured in any extinctions.

Should the writer keep or delete this text?

A. Keep it, because it introduces the discussion of the two studies mentioned at the end of the passage.

B. Keep it, because it suggests a possible avenue for additional study of other stars besides the Sun.

C.Keep it, because it provides direct support for the concession made earlier in the sentence.

D. Delete it, because it interrupts the flow of the argument by introducing irrelevant information.

E. Delete it, because it appears to contradict the experts view described later in the sentence