Mark the letter А, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.

Many festivals celebrate the _______ of their community's ancestors, showcasing traditional dances and music. 

a. Firstly, it’s considered impolite to point your feet at someone, especially an older person, as the feet are considered the lowest part of the body.

b. In conclusion, these cultural taboos reflect the importance placed on harmony, respect, and maintaining social order in Vietnamese society.

c. Additionally, raising your voice or showing anger in public is seen as breaking social harmony.

d. In Viet Nam, respecting elders is a cultural norm that holds great significance.

e. Lastly, discussing personal matters or asking someone’s age, salary, or marital status upon first meeting is often seen as intrusive.