Please provide the following answer

You decide to take a working holiday in Australia. In Sydney, you find a Mcdonald's that will pay you $25 per hour (Australian dollars, AUD). Online, through a friend, you find a lawyer who will hire you to work in her Sydney law office filing papers for AUD $12 per hour. According to an economist, if you accept the job at Mcdonald's, the opportunity cost (per hour) would be: Select one: O $13 O $12 $0 $25