Which Oklahoma structure best describes how the state actually regulates food safety competency at the establishment level, as opposed to individual food handler certification requirements used in some other states?
A. Oklahoma requires a food handler card only for employees under age 18
B. Oklahoma requires food handler certification only for establishments serving raw shellfish
C. Oklahoma requires every food employee to complete a state-approved food handler course and carry proof of completion at all times
D. Oklahoma places the demonstration-of-knowledge burden on the person in charge (PIC) of the establishment, who may satisfy it through inspection compliance, certified food protection manager (CFPM) status, or correctly answering an inspector's questions; there is no statewide individual food handler card mandate