The era of the Soviet Union
Look for stereotypes such as the obvious, greasers and socs. If you still can't come up with anything let me know.
I believe the answer is that 'only a person's good deeds remain with him or her in the afterlife'. It is important to be a good person and do good, and everything else is fleeting, it will disappear. But you will be awarded for your good deeds.
I'd have to go with D because Romeo and Juliet can't be together because their families hate each other. They are defined by their family names and if they go together one of them would share the family name of the other.