1. All the INSAT series of satellites were launched abroad |
2. PSLVs were used to launch IRS-series of satellites |
3. India used the indigenously built cryogenic engines for the first time for powering the third stage of GSLV |
4. ISRO launched its 100th mission Polar Satellite Launch Vehicle (PSLV-C21) from Sri Lanka on September 9, 2012 |
A) 1 and 2 only
B) 1, 2 and 3 only
C) 2, 3 and 4 only
D) 1, 2, 3 and 4
Correct Answer: D
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