When Kristin got a new phone number, she realized that she could easily remember the last four digits because they matched her mother's birth year, 1954. Her ability to quickly convert this information into long-term memory is due to

Episodic memory

Explanation:

Episodic memory: In psychology, the term "episodic memory" is referred to as one of the types of long-term memory that encompasses the recollection of particular experiences, events, and situations.

Example: An individuals' memories of going to the first day at school or gym, a girl's first kiss, etc.

Function: It allows an individual to remember or recall personal "past happenings".

In the question above, the given signifies that "Kristin ability to convert the given information into long-term memory is due to the presence of episodic memory".

rain should be the answer.