Answer: b. Rehearsal to temporarily store the names in short-term memory.
Step-by-step explanation:
In psychology, rehearsal refers to the phenomenon of repeating information over and over again in order to memorize it. As seen in this case, Kayla is presented with new information - she has just met seven people and wants to memorize their names. For this reason, she repeats the names to herself. She is not trying to block other information, or encode the sounds. She is also not chunking (breaking down pieces of information and connecting them afterwards).