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: In the activation of the serum complement, the assembly of the Membrane Attack Complex begins with: 
 Options:  <1> C9 <2> C5b. <3> C3a. <4> C6 <5> C8.
Example Output: 2

Example Input: Question: A 55-year-old woman with adrenal insufficiency has been prescribed corticosteroid treatment. Which of the following instructions would you provide in relation to this treatment? 
 Options:  <1> Take the drug first thing in the morning. <2> Take the drug before bedtime. <3> Exclude foods rich in calcium and vitamin D from the diet. <4> Eat a diet low in calories and protein. <5> Monitor the decrease in blood pressure.
Example Output: 1

Example Input: Question: When dissolving a non-volatile solute in a solvent forming a diluted solution, it is observed: 
 Options:  <1> An increase in the freezing temperature of the solvent. <2> An increase in the boiling temperature of the solvent. <3> An increase in the vapor pressure of the solvent. <4> An increase in the chemical potential of the solvent. <5> A change in colligative properties depending on the type of solute.
Example Output:
2