Final answer:
The repeated act of falling asleep in front of the TV due to exhaustion has likely resulted in classical conditioning, causing the student to feel sleepy when watching TV even after catching up on sleep. option a.
Step-by-step explanation:
The psychological concept that might explain the continued sleepiness even after catching up on sleep is classical conditioning. This concept involves learning through association - in this case, it is likely that the student has formed an association between sitting down to watch TV and feeling sleepy, a response that was initially caused by exhaustion from overwork. Even though the student is no longer sleep deprived, the conditioned response (sleepiness) persists due to the strong connection that has been formed between the context (watching TV) and the response (feeling sleepy).