I believe the answer to be D. Substitute the underline sentence with the answer choices. D makes the most sense.
I think E. Would be the best answer correct me if I’m wrong :/
Explanation:
This refers to a short phrase at the top of an online or printed article. A headline summarises or draws attention to a story to encourage people to read it. People often choose to read a few headlines, rather than full articles, to get a quick sense of what's going on in the world when they're busy.
Answer:
it's
Explanation:
D) "If you don't know the sender, the e-mail is probably junk."