Explanation:

A is true but R is false.

• The surface velocity of rotation varies from point to point on the Earth. It gradually reduces as we move to the poles and it is practically zero there. A satellite launched from the sites near the equator towards the east direction will get an initial boost equal to the velocity of Earth's surface. The initial boost helps in cutting down the cost of rockets used to launch the satellites. This is the major reason for launching satellites in the east ward direction. But this benefit can be taken only for such satellites which are placed in geostationary orbit or which circle the Earth parallel to the equator. Hence option 3rd is correct.