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 56-year-old woman presents, after a casual fall to the floor, pain, deformity and increased volume in the left arm, with impossibility for the dorsal flexion of the hand. What is the most likely diagnosis? 
 Options:  <0> Trocheter fracture in the left humerus. <1> Diaphyseal fracture of the left humerus with radial nerve injury. <2> Supraconcondylar fracture of the humeral palate with median nerve injury. <3> Fracture of the anatomical neck of the humerus with radial nerve injury. <4> Fracture of displaced epitrochlea with ulnar nerve injury.
[EX A]: medicine

[EX Q]: Question: Isopropyl alcohol is prepared from petroleum by hydration of: 
 Options:  <0> Isobutene <1> Eteno <2> Penteno <3> Buteno. <4> Propene
[EX A]: chemistry

[EX Q]: Question: Which of the following drugs used in the treatment of osteoporosis acts by binding to the RANK ligand? 
 Options:  <0> Alendronate. <1> Denosumab. <2> Calcitonin <3> Raloxifene. <4> Teriparatida.
[EX A]:
pharmacology