Answer to Question 1
Answer: B
Explanation: B) You can help potential followers find you through Twitter's internal search engine by adding a hashtag () before keywords and phrases. A hashtagword combination becomes a clickable link that leads to other tweets on that topic.
Answer to Question 2
Answer: A
Explanation: A) Use keywords and phrases in your pin descriptions to lead current and potential followers to your Pinterest boards. Just like Twitter, Pinterest supports hashtags to categorize content.