Final answer:
Rote rehearsal is the most effective method for remembering something for a couple of minutes, as it involves repeating information to keep it in short-term memory.
Step-by-step explanation:
If you want to remember something for a couple of minutes, the MOST effective device is C. rote rehearsal. Rote rehearsal involves the simple repetition of information to keep it within short-term memory, making it more likely to be recalled over a short period. This method is less about understanding and more about maintaining the presence of information in your consciousness. This kind of active rehearsal is a straightforward technique to temporarily hold onto details such as a phone number or an address until it can be written down or used.
Elaborative rehearsal, on the other hand, is more effective for transferring information into long-term memory as it involves deeper processing by linking new information to existing knowledge. Mnemonic devices, such as acronyms or acrostics, can be helpful for memorizing larger bits of information and are often used to enhance long-term memory retention. However, for the purpose of memorizing something for just a few minutes, simple and direct repetition through rote rehearsal is recommended.