RTS stands for: A. ready to start B. ready to switch C. request to send D. request to scan E. ready to set

The correct answer is C. Request to Send.

RTS stands for Request to Send. It is a control frame used in the Carrier Sense Multiple Access with Collision Detection (CSMA/CD) protocol. RTS is used to request permission to transmit data from a sender to a receiver. The receiver will then send a Clear to Send (CTS) frame to the sender, allowing the sender to transmit the data.

A. Ready to start is not a valid option.
B. Ready to switch is not a valid option.
D. Request to scan is not a valid option.
E. Ready to set is not a valid option.