In this task, you are given a multiple-choice question about healthcare. Answer the question based on your information and classify your answers into '1', '2', '3', and '4'.
Q: Question: Calcitriol or active Vitamin D induces:
Options: <1> Hypocalcemia <2> Synthesis of calbindin in enterocytes. <3> Calcium secretion in urine. <4> PTH secretion. <5> Decrease in intestinal absorption of phosphate.
A:
2