Final answer:
The force acting on an object being pulled toward the center of the Earth is gravity.
Step-by-step explanation:
The force acting on an object being pulled toward the center of the Earth is gravity. Gravity is the force of attraction between two objects with mass, in this case, the object and the Earth.
The force of gravity pulls objects toward the Earth's center. This force keeps objects like satellites in orbit around the Earth and causes objects to fall towards the ground when dropped.
Therefore, the correct answer is C. gravity.
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