instruction:
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.
question:
Question: In the receptor-mediated endocytosis intervenes: 
 Options:  <0> Only the clathrin. <1> Only the adaptin. <2> Adaptine and clathrin. <3> Chaperones <4> Only the proteins of the membrane.
answer:
biology


question:
Question: They are primary lymphoid organs: 
 Options:  <0> Spleen and lymph nodes <1> The spleen and bone marrow. <2> The thymus and the bone marrow. <3> The pineal gland <4> Peyer's plates and tonsils.
answer:
biology


question:
Question: At what age does gender identity develop ?: 
 Options:  <0> Shortly after birth. <1> Between 2 and 4 years. <2> Between 5 and 7 years old. <3> Between 13 and 14 years old. <4> At puberty.
answer:

psychology