● In IRNSS, Out of the seven satellites of space segment; four satellites are in geosynchronous orbit and three satellites are in geostationary orbit. So 1 st statement is right. "D" is eliminate(d) [And we no longer need to worry about the validity of statement #3, because there is no option where 1 and 3 are together.] ● IRNSS covers an area of about 1,500km around Indi(a) So, 2nd statement is wrong. B and C are eliminate(d) Therefore, Answer has to beA) 1 only.