Answer:
Sensory adaption.
Step-by-step explanation:
Sensory adaption may be defined as the phenomena in which the sensitivity is reduced against the stimulus by the continuous exposure to it. This helps to sense the other stimuli of the environment.
Jennifer's that smokes daily unable to detect the smell of smoking. Her sensitivity towards the smoking smell has been reduced as she is continuously exposing towards that smell. This case clearly indicates the phenomena of sensory adaption.
Thus, the correct answer is option (B).