1. "Hello!" shouted the old man.
* This is the most common and natural way to punctuate the sentence. It indicates that "Hello" is being shouted, and the old man is the one shouting it.
2. "Hello," shouted the old man.
* This option implies that "Hello" is a more neutral statement, and the emphasis is on the fact that the old man shouted it.
3. "Hello?" shouted the old man.
* This option suggests that "Hello" is a question, and the old man is asking it in a loud voice.
4. Hello, shouted the old man.
* This option is grammatically correct but less common. It emphasizes the word "Hello" and implies that it is a statement, not a question.
5. "Hello, shouted the old man?"
* This option is unusual but possible. It suggests that the speaker is unsure if the old man shouted "Hello."
The best punctuation choice depends on the context and the speaker's intended meaning.