Question

in a positive feedback loop, the body will increase the rate of change _______
only slightly, then stopping
towards set values to stop the change
away from a set point to keep the change going (more, more, more!)
without ever stopping

Explanation:

Positive - feedback loops in the body amplify a change, moving away from a set - point to continue the change process. They don't aim to stop the change like negative - feedback loops.

Answer:

away from a set point to keep the change going (more, more, more!)