Answer: Short-term memory
Explanation:
Short-term memory is referred to as a type of memory which keeps brief or short information temporarily. Information which an individual is presently thinking of can be remembered for a short period of time and it is always limited. Furthermore, information kept in short term memory can also be recalled through subvocal repetition. It is also called active memory. Thus, its time span is in seconds.
Tammy relied on short term memory.