Explain the Reason Why Oral Liquid Iron Supplements Should Be

Explain the reason why oral liquid iron supplements should be taken by straw or with juice or water.

A) Liquid iron preparations should be taken with juice or water so that the iron does not erode the lining of the esophagus.
B) Liquid iron preparations should be taken with juice or water or by straw to avoid or decrease the staining of the teeth.
C) Liquid iron preparations should be taken with juice or water or by straw so that the iron does not come in contact with the tongue, causing glossitis.
D) All of these are correct.