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.

Q: Question: A calcium figure of 11 mg / dL (normal less than 10.5 mg / dL) is found in a 30-year-old patient during a routine business examination. The PTH determination was 45 pg / ml (VN 10-55 pg / ml). The story is anodyne, except for the fact that the mother and the paternal grandfather were diagnosed with hyperparathyroidism and intervened, although they remained hypercalcemic. Which test is most useful to confirm the diagnosis? 
 Options:  <0> 25-OH D. <1> 1,25-OH 2D. <2> Calcium / creatinine ratio in urine. <3> Tubular reabsorption of phosphates. <4> PTHrP.

A: medicine
****
Q: Question: The p53 factor induces: 
 Options:  <0> Survival. <1> Proliferation. <2> Senescence <3> Apoptosis <4> Increase.

A: biology
****
Q: Question: In the valuation of a strong base with a strong acid the pH of the equivalence point: 
 Options:  <0> It depends on the strong base that is valued. <1> It is determined by the excess OH ̄ of the solution. <2> It depends on the strong acid used as a titrant. <3> It is determined by the dissociation of water. <4> It is determined by the excess H + of the solution.

A:
chemistry
****