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.

CULTURAL EXCHANGE DAY: CELEBRATING DIVERSITY
Dear Students and Staff,
Our school is proud to host a special Cultural Exchange Day to celebrate the rich diversity of (13) __________ groups in Viet Nam. This event aims to introduce you to the unique customs and traditions of various communities across our country.
You will have the chance to see traditional costumes, listen to folk music, and try authentic dishes from different ethnic groups. For example, you can learn about the intricate patterns of the H'Mong's traditional clothing, which are (14) __________ beautiful as their dances. There will also be displays of traditional musical instruments and handmade crafts. We believe that learning about these cultures is (15) __________ important as protecting them. Come and explore the beauty of Vietnamese ethnic cultures! The event will take place (16) __________ the school yard.