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.

Question: Question linked to the image nº5 62-year-old man, smoker of 20 cigarettes a day for 30 years and hypertensive, who comes to the clinic because of pain when walking in the gluteal area that begins at a distance of 300 meters and disappears with rest at 5 minutes. An Ankle / Arm index is made whose image is attached. Which is the diagnosis? 
 Options:  <0> Critical ischemia of right lower limb. <1> Acute ischemia due to arterial embolism. <2> Chronic ischemia due to left iliac occlusion. <3> Leriche syndrome due to bilateral iliac occlusion. <4> Radiculopathy
medicine

Question: The binding of an allosteric activator to an allosteric enzyme typically results in: 
 Options:  <0> Decrease the Vmax. <1> The transition to a less soluble state. <2> Decrease the Km by its substrate. <3> The transition to hyperbolic kinetics. <4> The dissociation of its subunits.
chemistry

Question: After antigenic recognition, the T cell receptor transmits an activation signal through: 
 Options:  <0> CD3 and chain . <1> Ig and Ig. <2> TAP1 and TAP2. <3> RAG1 and RAG2. <4> Determining regions of complementarity 1 and 2.

biology