Answer:
a. distributed practice
Step-by-step explanation:
Distributed practice: The term distributed practice is also referred to as spaced practice and is defined as a learning strategy that utilizes smaller increments in the study and then practices it over a longer period instead of massed practice.
In distributed practice, an individual gets gaps between the occurrence of a particular item that makes the retrieval effortful that is considered as a benefit to the memory of the person.
In the question above, Kathleen is most clearly relying on distributed practice to improve her quiz performance.