instruction:
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'.
question:
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.
answer:
2


question:
Question: Sodium borohydride is a reagent used in Organic Chemistry for its properties such as: 
 Options:  <1> Reducer. <2> Oxidizer <3> Alkylator <4> Acid. <5> Organometallic.
answer:
1


question:
Question: The cells of the stomach that are responsible for the secretion of hydrochloric acid are: 
 Options:  <1> The main cells. <2> The G cells <3> The parietal cells. <4> The enterocytes. <5> The mucosites of surface.
answer:

3