Jimmy is trying to learn his phone number and address. he tells his father, "maybe if i say it to myself a hundred times, i will be able to remember it." jimmy is demonstrating that he is beginning to appreciate

The correct answer is metamemory.
Metamemory refers to the fact that a person is aware of how his or her memory works - he or she is likely to know the best strategies in order to learn and remember something, as well as how to retrieve that knowledge whenever needed. So in this case, Jimmy is aware of the best way for him to memorize his phone number and address, which is an example of metamemory - talking about memory itself.