Q: In this task, you are given a multiple-choice question about healthcare. Answer the question based on your information and classify your answers into '1', '2', '3', and '4'.
Question: In relation to the process of formation of impressions, what does the phenomenon of Perceptual Defense refer to?
Options: <1> Low threshold to perceive threatening stimuli. <2> Low threshold of recognition before stimuli that satisfy our needs. <3> High threshold to perceive threatening stimuli. <4> High threshold of recognition before positive stimuli. <5> Low threshold to perceive both negative and positive stimuli.
A:
3