What does it mean you can only speak when you in someone line of vision.

Which of these statements about the cpp supports the sub-claim that it cleans the air? a. the cpp cuts particle pollution, nitrogen oxides, and sulfur dioxide by more than 25 percent. b. the cpp avoids up to 6,600 premature deaths. c. the cpp cuts electricity bills roughly 8 percent. d. the cpp provides americans with reliable and affordable power.

Which statement best paraphrases these sentences from the text

What are the effects of cellular phones on our lives introduction