Question

Themes are important to historians trying to organize information about the past because they:

Answer 1

Id say A. because it makes the most Sense But d sounds like a optional answer depending on a particular topic of thems

Answer 2

A. allow historians to compare seemingly unrelated societies based on a single important idea.

Step-by-step explanation:

Themes is a way to organise information about societies, because in history there's too much information to process at once. So, in order to achieve some aims and do comparison between, you need to segment it.