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.
Input: Question: The specialized type of soft and diffuse connective tissue, called myeloid tissue, is also called:
Options: <0> Spinal cord. <1> Bone marrow. <2> Myelin <3> Endochondral marrow <4> Leukomyelin
Output:
nursery