Which of the Following Statements Regarding Chemical Urinalysis Strip Procedures

Which of the following statements regarding chemical urinalysis strip procedures is incorrect?

A) The chemical strip bottle must be kept tightly sealed when not in use.
B) Do not use expired strips.
C) The moistened strips should be held horizontally to prevent urine and reagents from running into another test area.
D) The strips must be stored in the refrigerator.