Consider the following statements - 1. GSAT-8 is the heaviest and largest satellite built by ISRO. 2. It was one of the two copassengers in ISRO's launch carried by Ariane-5 on May 21, 2011. 3. The two communications satellites which the 800 tonne Ariane-5 launched carried weighed 9,000kg. 4. The other and even heavier satellite was from Singapore and Taiwan. which of the above is correct?

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