Detailed Instructions: In this task, you are given a question and answer options for that question. Using this information, you have to classify each text into different topics: medicine, nursery, psychology, chemistry, pharmacology, biology.
Problem:Question: Which of the following types of receptors is found in both the sympathetic and parasympathetic ganglia of the vegetative nervous system? 
 Options:  <0> Nicotinics <1> Muscarinic <2> Beta1-adrenergic. <3> Alpha1-adrenergic. <4> Gabaérgicos.
Solution:
pharmacology