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'.

Ex Input:
Question: The R-bands of human metaphase chromosomes: 
 Options:  <1> They contain DNA rich in AT pairs. <2> They have high gene density. <3> They contain poor DNA in GC pairs. <4> They replicate at the end of phase S. <5> They have low gene density.

Ex Output:
2


Ex Input:
Question: Among the activities of the nurse for a patient with cognitive impairment secondary to Cerebral Vascular Accident, is NOT correct: 
 Options:  <1> Reorient the patient in terms of time, place and situation frequently. <2> Use verbal and auditory cues to guide the patient. <3> Repeat and reinforce instructions frequently. <4> Avoid showing family objects so as not to contribute to their frustration. <5> Use a simple language

Ex Output:
4


Ex Input:
Question: Nitric oxide: 
 Options:  <1> It is synthesized from methionine. <2> Activates cAMP-dependent protein kinase (PKA). <3> It binds to receptors coupled to G proteins (GPCR). <4> Induces relaxation of the vascular endothelium. <5> It binds to receptors with protein tyrosine kinase (PTK) activity.

Ex Output:

4