Which suggested change would cause the greatest increase in the amount of overload in your weight-training workout?

The answer is putting on more weight and adding more distance in your movement. This is going to increase the resistance and will build muscle mass as you work out.  You know you are ready to add more weights and reps when you can easily handle the current amount of weight that you are working out on.

d) the ability to recognize shapes

answer; monaxial;