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.

Read the excerpt from "mother tongue." those tests were constructed around items like fill-in-the-blank sentence completion, such as “even though tom was mary thought he was ” and the correct answer always seemed to be the most bland combinations of thoughts, for example, “even though tom was foolish, mary thought he was ridiculous.” well, according to my mother, there were very few limitations as to what tom could have been and what mary might have thought of him. so i never did well on tests like that. how does tan build a central idea of her story in the excerpt? tan discusses the types of questions on achievement tests to support the idea that the tests limit students’ ability to write well. tan explains a question on a language achievement test to support the idea that the tests should include more interesting content. tan gives an example of her experience with achievement tests to support the idea that they are not always accurate measures of language ability. tan considers how her mother might answer a question on a test to support the idea that nonstandard english limits a person’s ability to communicate.