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'.

[Q]: Question: Question linked to image # 12 What is the most reasonable attitude at this time ?: 
 Options:  <1> Remove the entire catheter and reinsert it. <2> Extract about 10 cm the catheter and install the appropriate treatment. <3> Channel another central venous line through the jugular vein. <4> Leave it as it is because it can be used to monitor central venous pressure. <5> We can not use the catheter because it has perforated the vein and it is located in the lung.
[A]: 2


[Q]: Question: Which of the following molecules has the highest number of antibonding electrons? 
 Options:  <1> B2. <2> N 2 <3> Li2. <4> F 2 <5> O 2
[A]: 4


[Q]: Question: Which of the following signs is characteristic of a patient with left heart failure ?: 
 Options:  <1> Rattles. <2> Increased blood pressure. <3> Decrease in weight <4> Ascitis <5> Bradycardia
[A]:
1