Choose the correct answer A, B, C or D to fill each blank in the following text.

Pho might be Vietnam’s (20) _______ famous dish, but bun cha is the top choice when it comes to lunchtime in Hanoi. It doesn’t matter if you eat bun cha in a restaurant or a small cart (21) _______ the street, you will be served with a plate of vermicelli (bun), a bowl of broth with grilled pork and a basket of fresh herbs. The vermicelli and fresh herbs are pretty common in a Vietnamese restaurant, but the broth and the pork are the ones that make this dish (22) __________. Bun cha sets often come with the delicious nem cua be– fried crab spring (23) _______. Still not convinced? It’s what Obama ate with Bourdain when he (24) _______Viet Nam.