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'.

Example Input: Question: What serum immunoglobulin will synthesize an activated B lymphocyte that has not been stimulated through CD40 ?: 
 Options:  <1> Any. <2> IgE <3> IgM <4> IgA <5> IgG
Example Output: 3

Example Input: Question: They are reservoirs of Q fever (Coxiella burnetti): 
 Options:  <1> Bats <2> Poultry. <3> Rodents <4> Dogs. <5> Cows, sheep and goats.
Example Output: 5

Example Input: Question: The degrees of freedom of the intragroup variance in a 1-way Anova comparing 4 groups of 10 individuals each are: 
 Options:  <1> 38 <2> 39 <3> 3. <4> 40 <5> 36
Example Output:
5