Which of these would need to be changed to make a hormone ineffective?(1 point)

Responses

receptors on the outside of the target cell
receptors on the outside of the target cell

the time it takes to travel to the cell
the time it takes to travel to the cell

the distance from the gland to the receptor
the distance from the gland to the receptor

the frequency that hormones are produced

receptors on the outside of the target cell