Regarding CSMA/CA, choose all the correct statements.
A. A protocol in which a carrier sensing scheme is used.
B. A data station that intends to transmit a frame firstly sends a jam signal. After waiting a sufficient time for all stations to receive that jam signal, the data station then transmits its frame.
C. While transmitting, if the data station detects a jam signal from another station, it continues to transmit for a random number of times and stops for a random number of times and retries.
D. RTS-CTS exchange is used as its carrier sensing scheme.