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: The reaction conditions for transforming nonanamide into octanamine and carbon dioxide are: 
 Options:  <0> H2, metallic catalyst. <1> Excess of CH3I, K2 CO3. <2> Cl2, NaOH, H2O. <3> LiAlH4, diethyl ether and then hydrolysis. <4> CH2N2, diethyl ether.
chemistry

Question: In the monocompartmental model, the shock dose for a drug that follows linear kinetics is administered in multiple doses orally and absorbed extraordinarily quickly; It can be calculated as: 
 Options:  <0> The ratio between the maintenance dose and the dosage interval. <1> The product of the maintenance dose by the rate constant of absorption. <2> The quotient between the dosing interval and the absorption rate constant. <3> The product of the maintenance dose by the accumulation factor. <4> The product of the dosing rate by the absorption rate constant.
pharmacology

Question: The presence of which of the following structural arrangements in a protein suggests that it is a regulatory protein for DNA binding: 
 Options:  <0> Plate . <1> Disordered region. <2> Helix . <3> Chaperones <4> Finger of zinc.

chemistry