Answer to Question 1
Answer: B
Explanation: B) Typing in front of a specific username on Twitter allows you to aim your tweet at particular people or groups. You can use this technique to respond to a compliment or complaint, or to respond to a specific question. The comment is posted on your Twitter stream and shows up in the mentions section of the user's Twitter account.
Answer to Question 2
Answer: B
Explanation: B) Social media experts recommend using a blog as the hub of your social media content. Facebook posts, tweets, and pins can all link to your blog. Unlike other social media outlets, blogs offer expansive space where you can communicate original ideas and become a thought leader in your industry.