Markus Moved into an Apartment on a Busy City Intersection

Multiple Choice

Markus moved into an apartment on a busy city intersection.Initially,the noise from the traffic kept him awake.After living in his apartment for a few weeks,however,the noise no longer bothered him and he slept throughout the night.This example demonstrates the behavioural process of:

A) classical conditioning.
B) sensitization.
C) operant conditioning.
D) habituation.