Question

which of the following best demonstrates the meaning of receding?
the outgoing tide
the rising tide
a person running toward you
a painful headache that wont go away

Explanation:

"Receding" means moving back or away. The outgoing tide moves away from the shore, which directly demonstrates this meaning. The rising tide moves toward the shore, a person running toward you moves closer, and a persistent headache does not involve movement away, so these do not fit.

Answer:

the outgoing tide