Final answer:
A humorous tone can be used in anecdotes, jokes, and comic strips to entertain and make the audience laugh.
Step-by-step explanation:
A humorous tone can be used in all of the above options: anecdotes, jokes, and comic strips. When using a humorous tone, writers aim to entertain and make their audience laugh. Anecdotes are short amusing stories, jokes are funny statements or setups with punchlines, and comic strips are visual narratives that contain humorous elements. All three of these forms are effective in creating a lighthearted and amusing tone in writing.