A) Its mass
I think this is the answer because if another planet had a bigger mass the other planets and the sun itself would orbit it. I am not sure though this is my best guess.
Then there would be no acceleration if the velocity of the body is 0.
Answer:
What is Asthenosphere?
Ans) The Lithosphere floats on top of a semi-liquid layer. This is known as the Asthenosphere. It is the ductile inner layer of the upper mantle.
So ur accurate answer is option b.
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