Final answer:
The apparent weight decreases at the top of a Ferris wheel.
Step-by-step explanation:
When you are at the top of a Ferris wheel, your apparent weight is decreased. This is because the centripetal force acting on you at the top is smaller than your actual weight. The centripetal force is responsible for keeping you in circular motion as the Ferris wheel rotates.
At the top, your apparent weight is decreased because the gravitational force acting on you is smaller than your actual weight. This can make you feel lighter at the top of the Ferris wheel.
Therefore, the answer to the question is b) It decreases.