Task: Question Answering
Input (English): Question: Of the following variables, which is considered a risk marker in the onset of cardiovascular disease: 
 Options:  <1> Elevated figures of LDL-cholesterol and total cholesterol. <2> Man over 55 years old. <3> Smoker of 20 cigarettes daily. <4> Sedentary. <5> All are correct.
Output (English): 2