TEXT FOUR: "Connected microphones are starting to appear in everything from cars to children's toys," said James Plouffe, lead solutions architect at mobile-security company MobileIron. "Consumers should think carefully about how comfortable they are with the prospect of a live mic in common household items." Q4: How does this paragraph develop the article's central ideas? * A. by showing that people love the convenience of voice control devices, and suggesting they will be important in the future

B. by pointing out the widespread appearance of voice control devices, and stating some concerns of a security expert

C. by showing that people are becoming increasingly dependent on voice control devices, and offering an opinion in support of this

D. by pointing out how companies are experimenting with different voice control devices, and outlining which are successful