Which of the following statements about the NR slot structure are correct?

Which of the following statements about the NR slot structure are correct?
A . Downlink slots can only be used to transmit downlink data.
B. Downlink self-contained slots can be used to transmit uplink data and SRSs.
C. The number of symbols in one slot is fixed to 14 regardless of the subcarrier spacing configuration.
D. The symbols in a slot can be classified as downlink, uplink, or flexible.

Answer: C