Is after the underlined word? If so, it'd be a preposition. It's followed by a noun.
Answer:
<em>A</em>: The topic is the benefits of having your own vegetable garden.
<em>B</em>: Here's a sample summary:
Although it's a lot of work, growing your own vegetable garden is certainly worth it. Some of the benefits include control over what is being grown, the convenience of a locally grown garden, fresher options, etc. The benefits don't stop there though, the work is also beneficial to your physical health.
Explanation:
The topic is just the main idea of the text. In this case, it's explaining the many benefits of growing your very own vegetable garden.
Hyperbole, you can't think of something a billion times a day.
