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.

[EX Q]: Question: A 16-year-old woman consulted for primary amenorrhea. It presents a normal female development of secondary sexual characteristics. The levels of estradiol and testosterone are normal. In the gynecological examination, agenesis of the vagina is appreciated. Ultrasound is performed and there is absence of uterus. The ovaries are normal ultrasound. No left kidney is seen. The most likely diagnosis is: 
 Options:  <0> Rokitansky syndrome. <1> Morris syndrome. <2> Congenital adrenal hyperplasia. <3> Polycystic ovarian syndrome. <4> Kallman syndrome.
[EX A]: medicine

[EX Q]: Question: Plasma ICP is more suitable for rapid multielemental analysis than flame atomic absorption methods because: 
 Options:  <0> The linearity interval is not wide, which allows for very sensitive analyzes. <1> The ICP has several possibilities to introduce the sample using different types of nebulizers. <2> They use two photomultiplier tubes, one for the ultraviolet region and the other for the visible one. <3> It has load-coupled silicon solid-state detectors that allow simultaneous monitoring of a large number of lines, reducing analysis time, sample volume and improving detection limits. <4> It is not correct, because with the ICP plasma, multielemental analysis can not be done.
[EX A]: chemistry

[EX Q]: Question: Which amino acid is a precursor of neurotransmissions such as dopamine, adrenaline and noradrenaline ?: 
 Options:  <0> Tryptophan <1> Serina <2> Tyrosine <3> Aspartic. <4> Glutamic
[EX A]:
chemistry