Which of the following statement is correct?

1. Taiu river separates India and Myanmar.

2. Amur River separates china and Russia.

3. Mahakali river separates India and Nepal.

4. Naf river separates Bangladesh and Myanmar.

a. 1,2,3

b. 2,3,4

c. 1,3,4

d. All

ANSWER: 1,3,4

Explanation:

Amur River separates china and Afghanistan.