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.

Q: Question: How are the proteins involved in the DNA curl and compaction called ?: 
 Options:  <0> Kinases <1> Topoisomerases <2> Histones. <3> Phosphatases <4> DNA nucleases

A: chemistry
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Q: Question: Which glands are located between the skin and the masseter muscle, in front and under the outer ear? 
 Options:  <0> Parotid glands <1> Submandibular glands <2> Sublingual glands <3> Mouth glands <4> Lieberkühn's glands.

A: pharmacology
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Q: Question: Indicate which of the following options does NOT suppose a normal response of the child's motor development in its first year of life: 
 Options:  <0> By 3 months, he is able to hold his head when he is incorporated. <1> By 4 months, the trunk begins to straighten up although the balance is still immature. <2> By 8 months, he dominates the sitting position and frees his hands to hold objects while maintaining balance. <3> Towards 10 months, start some steps. <4> By 12 months, the act of running appears.

A:
nursery
****