Which one of the following statements regarding artificial satellite of the earth is incorrect?

• A.  The orbital velocity depends on the mass of the satellite  
• B.  A minimum velocity of 8 km/sec is required by a satellite to orbit quite close to the earth
• C.  The period of revolution is large if the radius of its orbit is large
• D.  The height of a geostationary satellite is about 36000 km from earth