Satellites used for telecommunication relay are kept in a geostationary orbit. A satellite is said to be in such an orbit when.1. The orbit is geosynchronous2. The orbit is circular3. The orbit lies in the plane of the Earth's equator4. The orbit is at an altitude of 22,236 kmSelect the correct answer using the codes given below

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