Question

what is the meaning of climb the walls?
while waiting all day for an important phone call, the murphys were climbing the walls.
to play sports indoors
to accept an offer now for a later time
to be restless or nervous

Explanation:

The phrase "climb the walls" is an idiom. In the given context, the Murphys were waiting all day for an important phone call. Idioms often have meanings that are not literal. "To be restless or nervous" fits the situation of waiting anxiously (as in waiting for an important call). "To play sports indoors" is a literal interpretation which is incorrect for the idiom. "To accept an offer now for a later time" has no relation to the context of waiting and the idiom's typical usage.

Answer:

To be restless or nervous.