Answer:
B. Fun is definitely good for the brain!
Explanation:
Option B is the clincher sentence that best restates the topic sentence.
A clincher sentence is known to be a concluding sentence which actually reinforces the key message of a passage. Clincher sentences are usually found as the last sentence in a blog post, book chapter or even an essay that is well written. Sometimes, it can be found at the end of the end of a section before the next section is introduced.
Clincher is known to be a fact or argument that actually settles a matter conclusively.
