The correct answer is positive.
Positive feedback stimulates your body which responds to the same direction as stimulus.
Positive feedback is termed as the process which occurs in a loop of feedback which can cause instability system.
Exponential growth occurs when loop gain is above one and it is positive. There will also be chaotic behaviour and increasing oscillations.
Positive feedback is controlled by signals which are limited, damped, and filtered and it is used in electronics which are digital.