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'.

[EX Q]: Question: They are directly involved in allergic reactions:
Options: <1> T lymphocytes. <2> Dendritic cells <3> Monocytes <4> Platelets. <5> Mastocytes
[EX A]: 5

[EX Q]: Question: In relation to the risk factors of cardiovascular diseases, which of the following statements is NOT correct?
Options: <1> Regarding LDL cholesterol, the therapeutic objective depends on the global cardiovascular risk. <2> Type 2 diabetic patients should be considered at high cardiovascular risk and the objective in terms of LDL cholesterol should be <100 mg / dL. <3> There is not enough evidence that low levels of HDL cholesterol suppose a cardiovascular risk factor. <4> The important thing about the risk associated with hypertension is that it improves when blood pressure is reduced regardless of the type of drug used. <5> The existence of coronary disease in the family is a risk factor for the patient.
[EX A]: 3

[EX Q]: Question: Of the following statements of the electron transport chain. Which is true ?:
Options: <1> An FADH molecule can generate up to 2.5 molecules of ATP. <2> One molecule of NADH can generate up to 1.5 molecules of ATP. <3> Electrons flow from more positive reduction potentials to more negative reduction potentials. <4> Complex II (used by FADH2) does not transfer protons to the intermembrane space. <5> Complex III uses copper (Cu) atoms as cofactors.
[EX A]:
4