Task: Question Answering
Input (English): Question: People affected by chronic heart failure usually present the diagnosis of nursing Intolerance to activity related to: 
 Options:  <1> Fear, because it is a situation that poses a potential risk to life. <2> Imbalance between the supply and oxygen demand due to the decrease in myocardial contractility. <3> Excess fluid volume due to interruption of blood flow. <4> Poor knowledge about the disease and treatment with diuretics. <5> Infection due to decreased immune response.
Output (English): 2