<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A 55-year-old woman who is an established patient presents to your office. She is complaining of increased urination and increased thirst. She has recently began taking several over-the-counter vitamins and supplements. On further review, she reports she has also been having abdominal pain and constipation. She denies significant weight changes. Her fingerstick blood glucose in your office is 96 mgdL.Which of the following test is most likely to provide the diagnosis?? A: Pyridoxine levels, B: Niacin levels, C: Calcium level, D: Hemoglobin A1C, E: Free T4 levels,  <response>: Based on the patients symptoms of increased urination, increased thirst, abdominal pain and constipation, along with a normal blood glucose level, this appears to be a case of possible hypercalcemia. The patient recently started taking vitamins and supplements, which can sometimes contain high levels of calcium and lead to hypercalcemia. Of the lab tests listed, checking a calcium level would be most useful to diagnose hypercalcemia.C: Calcium level 