Final answer:
The most probable poster required to be displayed within a licensed premises by law is one that outlines the penalties for driving while intoxicated, as this is related to public health and safety. Hence, option (c) is correct.
Step-by-step explanation:
The display requirements for posters within licensed premises are often dictated by state and federal laws. While specifics can vary by region, the most likely poster to be required is one that describes the penalties for driving while intoxicated. This adherence to regulations is because such laws fall under the category of public health and safety, ensuring patrons are aware of the legal implications of consuming alcohol and then operating a vehicle.
A poster providing a chart showing the amount of alcohol one may be served before becoming intoxicated, stating the premises' right to refuse service, or stating the hours of operation may not be required by law but could be displayed at the discretion of the establishment for informational purposes or customer convenience.