Definition: 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'.
Input: Question: Prosopagnosia is defined as: 
 Options:  <1> Extreme form of agnosia characterized by the inability to recognize familiar faces. <2> Failure to recognize objects by touch. <3> Loss of ability to visualize images. <4> Form of anosognosia in which the patient denies his blindness. <5> Perceptive experience of an amputated limb.
