Solution
When the object goes to the peak point , velocity realised by the object will be 0 though it is not visible but no velocity appears at the peak point .
But gravitational acceleration stills appears on the object ,so $$9.81 m/s^2$$ gravitational acceleration works on the object .So, acceleration still works on the object,that is why ,the object strated to fall down on earth.
So,B is correct choice.
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