Which is sentence would you cite to support an inference that the effect of gravity would be gradual

Hello. You did not provide the context to which this question refers. However, we can say that the effect of gravity is gradual in relation to the weight of a body. As the weight increases, the effect of gravity increases gradually and steadily. The same happens when a body has its weight reduced, and the effect of gravity also decreases gradually.

Thus, an inference you can make about the effect of gravity is that this effect is positively related to the weight of a body.

no its not a run on sentence however i think you meant wet suits not sours also a run on sentence would be like surfers surf all winter long in southern california by using wet sours to keep them warm and the live their all year long  

i believe the answer is d