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

WHAT TO DO WHEN VISITING A NEW COUNTRY
1. Always respect ___(1)___ and be mindful of local customs.
2. Make sure to learn a few basic ___(2)___ in the local language to help with communication.
3. ___(3)___ the landmarks and historical sites to understand the country's culture.
4. If you face any difficulties, ask for help from the ___(4)___ people, as they are often very helpful and welcoming.