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

SCHOOL FIELD TRIP
1. Students must arrive at school on time ___(1)___ the bus will leave at 7:30 a.m. sharp.
2. Don’t forget to bring ___(2)___ comfortable shoes and a jacket.
3. Make sure to follow the guides' instructions ___(3)___ and behave responsibly.
4. The trip will end at 3:00 p.m., so parents need to pick up their children ___(4)___ at the school gate.