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: Point out the INCORRECT response in relation to the primary prevention measures of skin cancer: 
 Options:  <1> Avoid sun exposure between 12 and 15 hours. <2> Application of sun creams with high sun protection index, 15 minutes before exposure. <3> Use photoprotection to increase the time of exposure to the sun. <4> Use sunglasses, hats and appropriate clothing, as well as awnings and umbrellas. <5> Do not expose babies to the sun or to those who are being treated with immunosuppressants.

Ex Output:
3


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


Ex Input:
Question: A teenager with obsessive-compulsive disorder phones the Toxicological Information Service to ask if he can safely use an insecticide for cockroaches. What is the name of this escape behavior? 
 Options:  <1> Ascertainment. <2> Rationalization. <3> Reinsurance. <4> Ritualization <5> Testing.

Ex Output:

3