Answer: (C) Memory consolidation
Step-by-step explanation:
The memory consolidation is the process that stabilizes the memory trace and by using this process the memory can easily be retrieved when it is actually needed.
The memory consolidation is also known as the time-dependent process in which the recent learning process are automatically get transformed into the long term memory.
According to the given scenario, the given situation best illustrated the importance of the memory consolidation as it using the long term memory.
Therefore, Option (C) is correct.