Answer:
My name is MisterBigBrain. I have a big brain, so I am super smart. Although I cannot show you my brain, you will just have to take my word for it. I have just written a short story, and I am quite sure that I have successfully completed your challenge because I have a big brain.
The End
Explanation:
simple: My name is MisterBigBrain.
compound: I have a big brain, so I am super smart.
complex: Although I cannot show you my brain, you will just have to take my word for it.
compound-complex: I have just written a short story, and I am quite sure that I have successfully completed your challenge because I have a big brain.
