Questions: You are constructing a paragraph in support of the following thesis: Time spent on social networking sites enhances good interpersonal skills. Choose the sentence below that could effectively serve as a topic sentence for a paragraph that supports the thesis. Facebook allows people to share photos. Collaboration is one social skill that networking sites can help develop. The website Quora provides users with a forum to questions and have other users answer them.

The answer is: Collaboration is one social skill that networking sites can help develop.

This sentence is more descriptive of a specific feature of Facebook rather than directly supporting the thesis about enhancing interpersonal skills. While sharing photos can be a part of social interaction, it does not directly address the development of interpersonal skills.

This sentence effectively serves as a topic sentence for the paragraph supporting the thesis. It directly addresses how social networking sites can enhance interpersonal skills by focusing on collaboration, which is a key component of interpersonal interactions.

While this sentence describes a feature of Quora, it does not directly support the thesis about enhancing interpersonal skills. It focuses more on the functionality of the site rather than the development of interpersonal skills.