The children fail at first, but work together to separate their parents.
I can say that it depends on what you're writing like if you're writing a song then maybe you can search "Historical Songs" in the search engine and that may help you. I hope this helps.
The best answer is letter D. Ballads are a simple and concise narration of events. Themes are related to imaginary, supernatural, legendary, comic, romantic, historical or tragic events.
D.compound-complex sentence