Planes and pulleys have what types of impact on work and force ? ( MULTIPLE CHOICE )

A. Planes and pulleys can decrease the level of force required to move an object

B. Planes and pulleys can increase the speed of completed work

C. Planes and pulleys can change the direction of applied force

D. Planes and pulleys can decrease the level of work to move an object

What is the best conclusion based on this data? the hypothesis was not supported because the data indicated that fertilizing plants does not improve plant growth. the hypothesis was supported; to get the best growth, use 5 milliliters of fertilizer per plant. the hypothesis was not supported; the data indicated that too much fertilizer can inhibit plant growth. the hypothesis was supported; to get the best growth, use 15 milliliters of fertilizer per plant.