2022 Science & Technology - Military Technology

Which one of the following statements best reflects the idea behind the "Fractional Orbital Bombardment System" often talked about in media ?

• A hypersonic missile is launched into space to counter the asteroid approaching the Earth and explode it in space.
• A spacecraft lands on another planet after making several orbital motions.
• A missile is put into a stable orbit around the Earth and deorbits over a target on the Earth.
• A spacecraft moves along a comet with the same speed and places a probe on its surface.