Question

Speaking of school, scientists say that laughter has been

linked to improved brain activity. Studies suggest that a
little jest before a math test might help your brain
perform better.
Which phrase from the passage helps you understand the
meaning of the word jest?
A. math test
B. brain activity
C. laughter has been linked
D. speaking of school

Answer 1

Answer:C. laughter has been linked

Step-by-step explanation:

 jest actually means a joke, and even if we just look at the sentence we can tell that it has something to do with a joke because theyve mentioned laughing already.

hope that helps...

Answer 2

Laughter has been linked C