Which statement gives the correct meaning of the underlined sentence in this paragraph?

whenever tim went to the movies with the sullivans, he would hand mr. sullivan money for his ticket. but mr. sullivan refused to take it. he’d tell tim, “save it for a rainy day.” tim put the money in an envelope in his desk. the following summer, the sullivans invited tim to go along on a trip to boston. tim was able to pay for his train ticket with the money he had saved.

a.
a gift should be accepted politely.

b.
always offer to pay your own way.

c.
set aside money for a later time.

d.
guests should never pay their own way.

save it for a rainy day is the under line word