Read the following statement (A–E) and answer the question that follows them :A. Thyrocalcitonin is a hypocalcemic hormoneB. Isthmus in thyroid is a thin flap of connective tissueC. Ovulation of Graafian follicles is mediated by LHD. FSH and TSH are secreted by the hypothalamus.E. Hormones are nutrient chemicalsHow many of the above statements are incorrect?