Final answer:
The correct answer to the question is b. Deployed reusable binary. In a component diagram, components represent the executable parts of a system that can be deployed, such as software libraries, modules, or packaged applications.
Step-by-step explanation:
The question asks about component diagrams, which are used in the field of software engineering, particularly in the context of UML (Unified Modeling Language). A component diagram is a structural diagram that shows the organization and interrelationships of components within a system.
In a component diagram, a component represents a deployed reusable binary. This could be anything from a software library or a packaged application to a system module. Components are typically depicted as rectangle symbols with two smaller rectangles on the left side to symbolize the component's interface or provided and required services.
Therefore, the correct answer to the question 'Which kind of object is represented by a component in component diagram?' would be option b. Deployed reusable binary. This is because component diagrams focus on the software's executable aspects and how they are deployed onto the underlying hardware or middleware platforms.