instruction:
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:
Question: When centrifuging human peripheral blood in a density gradient in Ficoll: 
 Options:  <1> The mononuclear cells float on the Ficoll. <2> The lymphocytes remain in the background. <3> The erythrocytes float on the Ficoll. <4> The granulocytes float on the Ficoll. <5> The monocytes remain in the background.
answer:
1


question:
Question: Affective rigidity is characterized by: 
 Options:  <1> Rapid changes in mood. <2> Affective expression is discordant with the situation. <3> Absence of reactive positive feelings. <4> Inability to modulate affect depending on situations. <5> Little intense emotional responses.
answer:
4


question:
Question: The work of expanding a gas (W): 
 Options:  <1> It is a state function. <2> Equivalent to the heat associated with the process (Q). <3> Against constant pressure it is calculated with W = -Pext ΔV. <4> In a reversible isothermal process it is calculated with W = -nRTΔV. <5> Equivalent to the internal energy change during the process (ΔU)
answer:

3