Final answer:
The purpose of writing can be to entertain and persuade. A humorous skit can both entertain and persuade the audience with its message.
Step-by-step explanation:
Writing can have more than one purpose. In this case, the options provided are:
- A) entertain and inform
 - B) inform and persuade
 - C) entertain and persuade
 - D) inform and confuse
 
The correct answer is C) entertain and persuade. A humorous skit with a convincing message can both entertain the audience with humor and also persuade them with its message.