| Which of the following is true of SITOR ARQ mode: |
| A) The ship station sends a group of 3 characters twice and then waits for an "RQ" signal to indicate proper receipt before continuing transmission. |
| B) The Ship station sends each character twice, using a time diversity system to ensure proper parity. |
| C) The ship station sends a group of 3 characters, the shore station checks for proper parity and then requests the same group be resent to enable error correction. |
| D) The ship station sends a group of 3 characters, the shore station checks for proper parity. If parity is OK, the shore station indicates readiness for transmission of the next 3 characters. |
