"If You Hadn't Gone to Dinner with Your Friends,you Would

"If you hadn't gone to dinner with your friends,you would have stayed home and watched television." It follows that

A) watching television is the opportunity cost of having dinner with your friends.
B) the price of having dinner with your friends is more than the price you would have had to pay to watch television.
C) the opportunity cost of having dinner with your friends is lower than the opportunity cost of watching television.
D) it is less costly to watch television than to have dinner with your friends.