Calculate force to balance wheelbarrow

I donot know .I am typing casually. Rate it plzs.

c

explanation:

i believe the answer is c and this is only worth 10 points you might wanna change it

when two balls of the different masses are dropped from equal height, they reach the ground at the same time .this is because they experience the same acceleration.

the acceleration is independent of mass.

thus when they are dropped they will always maintain the same velocity and travel the same distance (neglect air resistance of course) at the same time.