Which of the following statement is correct?

• A spin stabilized satellite used solar cells mounted on a cylinder body that continuously rotates so that 40 a time and it also uses gyroscopic action of a spinning satellite to maintain its orientation towards the earth and the sun.
• A spin stabilized satellite uses solar panels whose cells are continually oriented toward the sun
• Satellite transponders use lower frequency reception of radiation from earth stations and higher frequency for transmission to earth stations.
• satellite transponders use a single frequency for reception and transmission from one point on earth to another
• None of the above