Final answer:
Bondage and discipline (B&D) is a sexual practice involving one person being bound while another controls the scenario, ranging from light to moderate activities within a consensual context.
Step-by-step explanation:
The term Bondage and discipline (B&D) refers to a sexual practice where one person is bound while another engages in varying degrees of controlling activities, ranging from light to moderate. This practice is characterized by the use of constraints and can include a variety of activities meant to exert control and exercise discipline within a consensual scenario. Answer C best fits the description of B&D. It's important to note that the context of this practice should always be consensual, safe, and respectful of all parties involved.