Answer: Rehearsal
Explanation: It is nothing more than a process of repeating information until it is memorised or learned, as in this case Randy kept repeating the phone number until he found a pen, writing it down on his own hand after memorising the number. This term may also be related to the concept of practice, although there are some differences with psychologists. The practice can be done from parts, while rehearsal is a repetition until it is remembered as a whole, such as a complete phone number, not just some parts of a phone number. Through rehearsal information is remembered in the long run, so it can be said that this repetition of information until it is remembered, is pictorially presented as a rehearsal of the trial performance as a whole before the premiere, to show the whole play on the premiere.