The section presents a question about the chemical element with the symbol "Au." The options provided are:

A. Argent (French for Silver)
B. Vàng (Vietnamese for Gold)
C. Đồng (Vietnamese for Copper)
D. Bạc (Vietnamese for Silver)

The correct answer is B. Vàng, which means Gold in Vietnamese. 

Key topics and entities:
- Chemical element
- Symbol "Au"
- Options related to elements: Argent, Vàng, Đồng, Bạc
- Correct answer: Vàng (Gold)