Answer: Option A
Answer: (a)
The Government of India launched the Integrated Guided Missile Development Program in 1983 to achieve self-sufficiency in the development and production of a wide range of Ballistic Missiles, Surface Air Missiles etc. Prithvi was the first missile to be developed under the Program. DRDO attempted to build a Surface-to-air Missile under Project Devil.
The Prithvi missile project encompassed developing 3 variants for use by the Indian Army, Indian Air Force and the Indian Navy. Over the years these specifications underwent a number of changes. While the codename Prithvi stands for any missile inducted by India into its armed forces in this category, the later developmental versions are codenamed Prithvi II and Prithvi III.
Prithvi I class was a surface-to-surface missile having a maximum warhead mounting capability of 1,000 kg, with a range of 150 km. It has an accuracy of 10 – 50 metres and can be launched from Transporter erector launchers. This class of Prithvi missiles was inducted into the Indian Army in 1994.