System for leaving messages which can be retrieved later

• A. Call forwarding
• B. Email
• C. Voice mail
• D. In-person notes

Answer: (C)

Leaving messages that can be retrieved later is about a stored-message system. Voicemail records spoken messages and stores them in the recipient’s mailbox, where they can be played back later at the recipient’s convenience. This makes voicemail ideal for asynchronous communication when someone is unavailable. Call forwarding moves an incoming call to another number; it doesn’t preserve a message for later retrieval by the original caller or recipient. Email can be used to leave messages, but it isn’t the standard system for leaving short recorded voice messages and requires the recipient to check their inbox. In-person notes need the recipient to be present to read them. So voicemail is the system designed for leaving messages that can be retrieved later.