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'.
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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 Arrhenius equation: 
 Options:  <1> It relates the speed of a chemical reaction with the so-called constant velocity and with the concentrations of the reactants raised to their stoichiometric coefficients. <2> It relates the constant of speed of a chemical reaction with the energy of activation of said reaction, so that if the energy, of activation is high the reaction is fast. <3> It is only fulfilled for unimolecular reactions. <4> It relates the speed constant to the temperature through the activation energy and the pre-exponential factor. <5> It allows to obtain the activation energy of an elementary reaction by only representing the decimal logarithm of the temperature versus the inverse of the reaction time.

Answer: 4


Question: Question: If metallic copper is added to a solution of iron (III) chloride, it produces: 
 Options:  <1> A precipitate of copper (II) chloride. <2> A solution of copper (II) chloride and iron (II) chloride. <3> A precipitate of iron (II) chloride. <4> A precipitate of metallic iron. <5> A solution of copper (I) chloride and iron (II) chloride.

Answer:
2