Which sentence could be removed from the first or second paragraphs without affecting the reader's understanding of the main idea?

a) the federal trade commission (ftc) launched the national do not call registry to give americans a choice about getting telemarketing calls at home.

b) if you think you put your number on the national do not call registry, and you’re still getting telemarketing sales calls, the federal trade commission recommends that you:

c) you can verify that your number is on the registry two ways: online at donotcall. gov (click on ‘verify a registration’), or by calling 1-888-382-1222 (tty 1-866-290-4236) from the phone number you wish to verify.

d) according to a recent harris interactive poll, 92 percent of people who reported placing a number on the registry said they are receiving fewer calls; a total of 78 percent said they’re getting ‘far fewer calls’ or none at all.