Read the passage below then answer the questions.

"Bun bo Hue" or "bun bo" is a popular Vietnamese soup containing rice vermicelli and beef . Hue is a city in central Vietnam associated with the cooking style of the former royal court . The dish is greatly admired for its balance of spicy , sour , salty and sweet flavors and the predominant flavor is that of lemongrass .

" Bun Bo Hue " originated from Hue , a former capital of Vietnam. Outside the city of Hue and some parts of Centrsl Vietnam , it is called " bun bo hue " to denote its origin. Within Hue and surrounding cities, it is known simply as bún bò. The broth is prepared by simmering beef bones and beef shank with lemongrass and then seasoned with fermented shrimp sauce and sugar for taste. Very spicy chili oil is added later during the cooking process.

Bun bo usually includes thin slices of marinated and boiled beef shank, chunks of oxtail, and pig's knuckles. It can also include cubes of congealed pig blood, which has a color between dark brown and maroon, and a texture resembling firm tofu.

1. What does " Bun bo Hue " contain ?

2. Where did it originate from ?

3. How is the broth prepared ?

4. Is spicy chili oil added before the cooking process ?

Cắk cúq nó gặp cụk cặk về não .

Thành phần tự nhiên nào ở nước ta chịu ảnh hưởng nhiều nhất, sâu sắc nhất của Biển Đông?

A. Sinh vật

B. Địa hình

C. Khí hậu

D. Cảnh quan ven biển