Graduate Student Pasquel Studies the Effects of Nicotine on Nicotinic

Graduate student Pasquel studies the effects of nicotine on nicotinic receptors by performing electrophysiology experiments. After applying nicotine to the bathing media of cells expressing nicotine receptors, what is he likely to find?

A) Nicotinic receptors remain open as long as nicotine remains bound.
B) After a short period of time, nicotinic receptors close even if nicotine remains bound.
C) Nicotinic receptors remain open for a prolonged period, even if nicotine dissociates from the receptor.
D) Nicotinic receptors remain open until nicotine binds, causing the receptor to close.