This question tests the everyday meaning of "couch potato", a phrase used for someone who spends most of the time sitting and watching television instead of being active.
The correct option is "Lazy person", since the sentence tells Jay to move more, which fits someone who avoids activity out of laziness.
Let's summarize:
So the option that best expresses the meaning of "couch potato" is "Lazy person".
If the price of a commodity increases by 25%, by what percentage should the consumption be reduced to keep the expenditure the same?