In order to remember a mobile phone number, one makes it into smaller meaningful units. What is this technique of memory called?

Correct option is D

Chunking is a memory strategy where information is grouped into smaller, more manageable units, making it easier to remember. For example, breaking a 10-digit mobile number into segments like 987-654-3210 helps in retaining and recalling it better. This technique enhances short-term memory capacity and is widely used in cognitive psychology to aid learning and retention.
Explanation of options: (a) Rehearsal – Rehearsal involves repeating information to keep it in short-term memory, but it does not restructure data into meaningful units like chunking. (b) Retrieval – Retrieval refers to accessing stored information from memory. It is a process, not a technique used to encode or organize information like chunking. (c) Relearning – Relearning is the process of learning information again, often quicker than the first time, but it is not related to organizing information into smaller units. (d) Chunking – This is the correct answer. It involves dividing information into groups, making complex data easier to remember and store in memory.