Answer:
Some longer-term changes begin as adjustments to compensate for drug-induced increases in neurotransmitter signaling intensity. For example, the brain responds to repeated drug-induced massive dopamine surges in part by reducing its complement of dopamine receptors.
The answer is B ( too many words can cause confusion)
Good luck on your test
If a person really wants to achieve a goal such as this one then a person must be dedicated and determined into reaching this goal. In this case, Isaac should train more and play less. It is not going to hurt Isaac one bit staying off the video games or reducing play time for awhile. Responsibilities come first I always believed in work hard first...play hard later.