Explanation:

• The K family of missiles are primarily Submarine Launched Ballistic Missiles (SLBMs). 
• These have been indigenously developed by Defence Research and Development Organisation (DRDO).
• The development of these missiles began in the late 1990s as a step towards completing India’s nuclear triad.
• Nuclear triad is the capability of launching nuclear weapons from land, sea and air-based assets.

Hence both statements are correct.