Currently, which among the following countries have space observatory?

Currently, which among the following countries have space observatory?
1. USA
2. Japan
3. China
4. Russia
Select the correct option from the codes given below:
[A]Only 1, 2 & 4
[B]Only 2, 3 & 4
[C]Only 1, 3 & 4
[D]1, 2, 3 & 4

Only 1, 2 & 4
So far only US, Russia and Japan have own space observatory. After successful launching of ASTROSTAT India became the fourth country globally to have space observatory.

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