When the mass of an object increases, the force of gravity

increases.

decreases.

remains the same.

becomes irregular.

Increases. The more mass an object has, the more gravity it has

According to the second law of motion, force is equal to the product of mass and acceleration. This means force is proportional to mass. Hence when mass increases, it is understood that force should increase as well. In this case, the answer to this problem is A.