Shirley Hurley, a Cautious and Careful Woman, Slipped on a Wet

Shirley Hurley, a cautious and careful woman, slipped on a wet patch in the produce department of Honest Al's grocery store. No one knows how the patch got there and how long it had been there before Shirley slipped. Al has a policy that the floors of the produce department are to be checked every hour for wetness and other unsafe conditions. There is reliable evidence that the policy was being followed on the day in question. Shirley sues for damages for the injuries she suffered from the fall. Which of the following is TRUE?

A) The defendants complied with the standard of care.
B) The principle of res ipsa loquitur applies in these circumstances.
C) The defendant took such care as well reasonable in the circumstances to make the premises reasonably safe.
D) The principle of absolute liability applies.
E) Both A and C