Most commonly "C", because they would want the reader to understand that something is different. Yes, they can change the style whenever they want to, but it would be more meaningful if they did it for a reason.
Motion energy is stored in the movement of objects and electric energy is delivered by tiny charged particles called electrons.
I hope i didn’t miss anything but here are the edits!
1. Your backyard is a Garden of Eden. (Biblical allusion)
2. I guess I should see this message about a new job as my burning bush. (Biblical Allusion)
3. When you feel betrayed by a friend, you can say, "You too, Brutus?" (allusion to Julius Caesar-Brutus betrayed Caesar)
4. You're a regular Einstein. (allusion to a historical figure)
5. When your parents learn about your new plan to raise money, it's going to sink like the Titanic. (allusion to a historical event)