Which condition is required for a satellite to be in a geosynchronous orbit about Earth?

1. The period of revolution of the satellite must be the same as the rotational period of the Earth.
2. The altitude of the satellite must be equal to the radius of the Earth.
3. The orbital speed of the satellite around the Earth must be the same as the orbital speed of the Earth around the Sun.
4. The daily distance traveled by the satellite must be equal to the circumference of the Earth.