Which letter will replace the question mark (?) in the

What is the total length of India – Pakistan border?

Consider the given statements:

(I) Bhimbetka rock shelter is located in the Indian state of Chhattisgarh.

Consider the following rivers:

1. Vamsadhara

2. Indravati

3. Pranahita

4. Pennar

Which of the above are tributaries of Godavari?

Consider the following rock systems that make up the Indian landmass:

1. Aryan

2. Dravidian

3. Archean

4. Dharwar

Consider the following statements:

1. The distance between rails is one metre is known as Broad Gauge.

A state in India has the following characteristics:

1. Its northern part is arid and semi-arid.

2. Its central part produces cotton.

Consider the following plateaus of central India: 

1. Baghelkhand

2. Bundelkhand

3. Malwa Plateau

4. Chotanagpur Plateau

Vitamin B-12 contains?

With reference to Indian physical features, which of the statements given below is/are correct?

Sink hole is the Phenomenon of which type of topography?