Summarize how the primary source of the Quran connects the fundamental beliefs of Islam to its development. A. The Quran establishes Muhammad as the Islamic leader who subsequently developed the Islamic Empire. B. The Quran establishes Ramadan, which is used for political and religious unity in Islam, leading to its expansion. C. The Quran establishes the concept of monotheism, a principle that is used as guidance for Islamic expansion. D. The Quran presents guidance on the religious practices and societal organization that developed Islam through its expansion.

The primary source of the Quran connects the fundamental beliefs of Islam to its development primarily through option D: The Quran presents guidance on the religious practices and societal organization that developed Islam through its expansion. The Quran outlines core teachings that established monotheism, social justice, and ethical behavior, which guided the early Muslim community in forming a cohesive society. As Islam expanded, these teachings influenced both the religious practices of Muslims and the societal structures within diverse cultures, aiding in the development of the Islamic Empire and ensuring unity among its followers.