Nozick's Aim in Discussing the Experience Machine Is to

Nozick's aim in discussing the experience machine is to

A) describe a device that he predicts will soon be invented and widely used.
B) give an example of a machine that he thinks will be forever beyond our technological capabilities.
C) create a thought experiment that sheds light on what we value in life.
D) show that pleasure is the only thing desirable in itself.