Final answer:
The correct answer to the question of which type of communication method is used when posting information to a website or bulletin board is B) Written communication. It involves expressing ideas in writing through digital platforms.
Step-by-step explanation:
Posting information to a website or bulletin board is primarily considered Written communication. This form of communication involves expressing ideas through the written word, which is a fundamental aspect of digital engagement. When one posts information online, they engage in a digital form of writing—be it on social media, forums, or websites—which is accessible and disseminated through technology.
While posting online can also incorporate elements of Digital communication, such as the use of multimedia, and sometimes aspects of Visual communication through images and design, the act of writing out a message for a website or bulletin board falls firmly within the realm of written communication. Thus, the correct answer to the student's question is B) Written communication.