Read the following announcement and mark the letter A, B, C, or D on your answer sheet to indicate the correct option that best fits each of the numbered blanks from 13 to 16.

ANNOUNCEMENT OF THE MID-TERM TESTS
The school administrators would like (13) ______
⮚ All students (14) ______ present by 7:30, from Dec 26 up to Dec 29.
⮚ (15) ______ cheating during your tests.
⮚ Bringing along mobile devices means (16) ______ your tests.