Correct Option: C

The Agni missile is a family of medium to intercontinental range ballistic missiles developed by India, named after one of the five elements of nature. The first missile of the series, Agni-I was developed under the Integrated Guided Missile Development Program and tested 1991. After its success, Agni missile program was separated from the IGMDP upon realizing its strategic importance. As of 2008, the Agni missile family comprises three deployed variants while two more variants are under testing.