The correct option is: "their shared religious beliefs"
The Abrahamic religions are the monotheistic religions that recognize a spiritual tradition identified with Abraham, the term is used mainly to refer collectively to Christianity, Judaism and Islam.
There are a certain number of common aspects between Judaism, Christianity and Islam:
Monotheism.
A prophetic tradition. The three religions recognize figures called "prophets"
Acceptance of some religious obligations of Judaism found in the Bible as a spiritual devotion to the traditions of Abraham and Moses for Christianity and for Islam, including those that have parallel narratives in the Koran, such as the stories of Adam, Noah, Abraham and Moses.
The Great Depression was a result of the nonintervention of the government in the economic treats. More than that, the 1920s made everyone understand that overproduction is not the answer and that the government has the duty to inspect what is happening in economics. To care about the production of goods and to maintain the health of economics.