Which of the following are open trading border posts between China and India?

1. Lipulekh

2. Aghil Pass

3. Imis La

4. Nathu La

5. Dihang Pass

6. Shipkila

a. 1,4,5,6

b. 4,5,6

c. 1,4,6

d. 1,2,4,6

ANSWER: 1,4,6

Explanation:

Nathu La is one of the second open trading border posts between China and India; the next is Shipkila in Himachal Pradesh and Lipulekh (or Lipulech) in Nepal is also an other way.