A
Only 1 and 2
B
Only 2, 3 and 4
C
Only 1, 2 and 3
D
Only 1
Correct answer: (d) Only 1
Explanation
- A
Only 1 and 2
Only 1 and 2. Nathu La–Sikkim is correctly matched.
- B
Only 2, 3 and 4
Only 2, 3 and 4. Those three holds are right; they are not the ‘not matched’ set.
- C
Only 1, 2 and 3
Only 1, 2 and 3. Bomdila–Arunachal holds.
- D
Only 1
Only 1. Lipulekh is in Uttarakhand (Kumaon / Byans), not Ladakh. Nathu La, Bomdila and Shipki La are correctly placed.
Summary. Official key is (d) only 1. Lipulekh is Uttarakhand, not Ladakh. The other three passes match.