Answer:
D) Heavier objects need a greater force to accelerate according to F=ma.
Step-by-step explanation:
The force of gravity acting on an object is equal to:
F = mg
where m is the mass of the object and g is the acceleration due to gravity. According to the formula, heavier objects (objects with greater mass, m) have a larger force of gravity acting on them.
However, the acceleration of an object towards the ground is given by:

therefore, we see that if the object is heavier (larger mass, m), the force of gravity (F) must also be larger in order to have the same acceleration a.