What do Judaism, Christianity, and Islam all have in common? A) All started in the Middle East and never managed to spread beyond that region.
B) All consider Sunday to be the most important day for worship.
C) All are monotheistic and share a tradition that traces back to Abraham.
D) All use the Qu'ran as a source of religious history and guide for living.

monotheistic religions

Explanation:

The fundamental similarity between Judaism, Christianity and Islam is that both are monotheistic religions, meaning that they believe in only one true God. They are also called the “Religions of the Book”, since they have set scriptures called the Torah, Bible and Quran respectively.

b) the confederacy had to pay all union war expenses.