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: The reaction product of cyclohexanone with bromine catalyzed by a base is: 
 Options:  <1> 2-Bromocyclohexanone. <2> 2,2-Dibromocyclohexanone. <3> 2,2,6-Tribomociclohexanona. <4> 1,1-Dibromocyclohexane. <5> 2,2,6,6-Tetrabromocyclohexanone.
[EX A]: 5

[EX Q]: Question: With vaginal ultrasound, from how long after conception is it possible to see an embryo with a heartbeat? 
 Options:  <1> Between 14 and 21 days. <2> Between 21 and 28 days. <3> Between 28 and 35 days. <4> Between 35 and 42 days. <5> Between 42 to 49 days.
[EX A]: 2

[EX Q]: Question: The different subpopulations of effector T lymphocytes secrete different cytokines. Which of the following statements is false?: 
 Options:  <1> TH1 lymphocytes secrete IL-3. <2> TH17 lymphocytes secrete IL-6. <3> TH2 lymphocytes secrete IFN-gamma. <4> Cytotoxic T lymphocytes secrete TNFalpha. <5> The regulatory T lymphocytes secrete IL-10.
[EX A]:
3