The correct answer is D. Standard course of action adopted by a business
Explanation:
In general terms, policy refers to a principle or standardized conduct or action that is established in an organization, usually for addressing relevant issues or aspects. For example, in education, policies are related to teacher recruitment, teaching methods, class size, etc. This implies workplace policy is an established principle or course of action that regulates aspects in a business such as allowed or forbidden behaviors, procedures in certain situations, among others. According to this, the best definition of workplace policy is "Standard course of action adopted by a business".
Explain Operating System working: OS works as an intermediate between the user and computer. It helps the user to communicate with the computer without knowing how to speak the computer's language. The kernel is the central component of a computer operating systems.