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: Retrograde amnesia is defined as: 
 Options:  <1> Memory loss that covers the period before the onset of the disorder that gave rise to amnesia. <2> Memory loss that covers the period following the onset of the disorder that gave rise to the amnesia. <3> Partial loss of memory that covers a specific period. <4> Memory loss in the absence of an organic brain disorder. <5> Distortions or memory errors.
1

Question: The process of bacterial sporulation occurs: 
 Options:  <1> Both Gram positive and Gram negative bacteria. <2> After the depletion of certain essential nutrients. <3> When unfavorable environmental factors such as UV light or heat appear. <4> During the exponential growth. <5> By budding of a stem cell.
2

Question: The Purkinje cells of the cerebellum receive direct input from: 
 Options:  <1> Spinal neurons <2> Neurons of deep cerebellar nuclei. <3> Climbing fibers <4> Mossy fibers. <5> Pyramidal neurons of cerebral cortex.

3