Final answer:
Teachers, students, and administrators can all be blog authors.
Step-by-step explanation:
The answer to the question, 'Who can be a blog author?' is D) All of the above. Teachers, students, and administrators can all be blog authors.
Teachers can use blogs as a platform to share their knowledge and expertise with their students and the wider community. Students can use blogs to express their thoughts, showcase their work, and engage in discussions. Administrators can use blogs to communicate important information and updates to their school community.
For example, a teacher might create a blog to share educational resources and tips with fellow educators. A student might create a blog to document their experiences and reflections on a particular subject. An administrator might create a blog to provide updates on school events and policies.