Katya convinces herself that the best way to prepare for her final exam tomorrow is to pull an ‘all-nighter' studying while artificially maintaining her energy with pot after pot of caffeinated coffee

Ironically, the research into the effects of sleep-deprivation on the brain have found that:
a. extended periods of sleep can be just as disruptive to long-term potentiation as extended periods of wakefulness.
b. long-term potentiation seems to be most likely to occur when an organism is well-rested.
c. long-term potentiation is least likely to occur in the mornings.
d. the effects of sleep deprivation on long-term potentiation have been found to be nonexistent, but the ingestion of caffeine severely diminishes long-term potentiation.

Answer: B