Answer: B) Television is a bad influence on children.
Step-by-step explanation: In the given excerpt of an argumentative essay we can see that the claim that the paragraph best provide support is that television is a bad influence on children. We can see that this claim is supported by statistics ("76 percent of the respondents admitted they had witnessed their children demonstrating improper or embarrassing behavior they felt originated from television") and also with examples of shows that can produce inappropriate behaviors on children like reality shows, daytime talk shows, and adult-themed cartoons.