Consider the following statements about Indo-Tibetan Border Police (ITBP) :
1. ITBP was raised in 1962. 2. ITBP is basically a mountain trained force. 3. ITBP replaced Assam Rifles in Sikkim and Arunachal Pradesh in 2004-2005 for border guarding duty. 4. ITBP presently has 52 service battalions.
Which of the statements given above are correct?

Options

A. 1, 2 and 4 only
B. 3 and 4 only
C. 1, 2, 3 and 4
D. 1, 2 and 3 only