When a rocket engine is launched into space, it burns fuel that produces hot exhaust gases. What are the forces involved in propelling the rocket upward?
A. The rocket is pushed up by the force of gravity.
B.
The force of gravity pulls the rocket towards Earth.
C. The rocket is pushed up by the force of the exhaust gas from the burning fuel.
D. The rocket engine exerts a force on the exhaust gases. That force causes the gases to escape out of the back of the rocket.

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