A nurse is providing teaching to the parents of a toddler who has iron-deficiency anemia and is taking iron supplements. Which statement by the parents indicates an understanding of the teaching?

A. Restricting fiber is not necessary; instead, administering vitamin C with iron can enhance absorption. B. Iron supplements can cause dark stools, but not blood in the stools. Blood in the stools requires further investigation. C. Routine monitoring of blood counts is crucial to assess the effectiveness of the iron supplementation and to adjust the dosage as needed. D. Iron supplements are better absorbed on an empty stomach; taking them with meals can reduce their absorption.