Final answer:
The common structure of a community of practice includes a domain of knowledge, a community of people, and shared practice. Therefore, the correct answer is 'd. All of the above,' which encompasses all these essential elements.
Step-by-step explanation:
The common aspects of the structure of a community of practice include:
- Domain of knowledge: This refers to the specific area of expertise or interest that unites the members of the community.
- Community of people: A group of individuals who engage with one another, share information, and build relationships within the context of the domain.
- Shared practice: The actual doing of something related to the domain, where members engage in activities, help each other, and share information.
Considering these aspects, the answer to the original question is d. All of the above, as all these elements are essential for the functioning of a community of practice.