According to the given question, Yvonne is basically boosting her memory by maintenance the rehearsals as it is one of the process of verbalizing and practicing the information again and again that helps her to remembering the act or any type of information in her memory.
There are mainly two types of rehearsals that are:
Elaborative rehearsal
Maintenance rehearsal
The maintenance rehearsal is one of the type of concept that is useful for data in the working memory for the short period of time and we can easily and immediately retrieve the information.
Therefore, Maintenance rehearsal is the correct answer.
