One difference between the development of Indian and Western European civilizations in the Dark (Middle) Ages was

Good

D. The influence of Christianity.

Explanation:

European civilization is Christian. Christianity has played a key role in molding the main characteristics of what being Western is. The countries that emerged and evolved after the fall of the Western Roman Empire inherited Latin culture and language influences, and adopted the empire´s official religion, Christianity. Latin was the language of the Church and of learning and study in Europe in the Middle Ages. It was Martin Luther´s Reformation that paved the way for the separation of Church and State, a fundamental characteristic of the West.

Meanwhile, Indian civilization is based on another major religion traditions. The most important is Hinduism, though Buddhism and Islam have also played a role. Another history, another political evolution and a different religion and values characterize India and its civilization.