This would be Professional. This person does not show any sign of aggression or anger in this passage. This person isn't using the passage in a funny or sarcastic way and brought up the fact that they would like to work with the company in the future. He told the company he appreciated the time they gave him making this very professional.
I think t<span>hat would allow a group to be responsible for the protection of both, both being the group and the environment. And both are in need of a protection right now.</span>
Dramatic irony is where the reader or watcher knows something that the character does not.
The exposition is the plot element that will provide background information, introduces main characters, and always establishes conflict.