TASK DEFINITION: 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: The covers of connective tissue that surround, protect and maintain the brain and spinal cord within the cranial cavity and the spinal canal are called meninges. Which of the following statements is correct? 
 Options:  <0> The meninges are not made up of connective tissue. <1> The pia mater adheres to the brain and spinal cord. <2> The arachnoid is the thickest and most external. <3> The dura adheres to the inner surface of the arachnoid. <4> The meninges only cover the brain.

SOLUTION: pharmacology

PROBLEM: Question: The reactivity of various carbonyl groups is determined by their relative stability. The order of reactivity towards nucleophiles is: 
 Options:  <0> Amides> Esters> Ketones> Aldehydes. <1> Aldehydes> Ketones> Esters> Amides. <2> Amides> Ketones> Aldehydes> Esters. <3> Aldehydes> Esters> Ketones> Amides. <4> Amides> Ketones> Esters> Aldehydes.

SOLUTION: chemistry

PROBLEM: Question: Childhood disintegrative disorder is characterized by: 
 Options:  <0> A seemingly normal development during at least the first two years of life. <1> Present only in the female sex. <2> Do not affect the intellectual capacity of people who suffer from it. <3> Does not affect the communication skills of the person. <4> A developmental delay evident from birth.

SOLUTION:
psychology