Which option is NOT a component of the COM-B model?

• A. Capability
• B. Opportunity
• C. Motivation
• D. Health Literacy

Answer: (D)

The main idea tested is that behavior comes from three interacting elements: capability, opportunity, and motivation. Capability means having the skills and knowledge to do the behavior, including both physical ability and psychological understanding. Opportunity covers the external conditions that make the behavior possible or easier, such as the surrounding environment, resources, and social support. Motivation includes the mental processes that energize and guide behavior, spanning deliberate planning and beliefs as well as automatic drives like habits.

Health literacy—the ability to obtain, understand, and use health information—relates to how well someone can grasp instructions or health details. It can influence capability and, in some situations, motivation, but it is not one of the three core elements of the COM-B model. That’s why it’s the option that doesn’t fit as a COM-B component.