Question

william penn referred to his colony as a \holy experiment\ because
its degree of religious tolerance had never been tried before.
it rejected all forms of religious teaching and practices.
its colonists were forced to follow the same religion.
it was founded and run on puritan principles.

Explanation:

William Penn's colony (Pennsylvania) was a "Holy Experiment" due to its unique religious tolerance. The second option is wrong as it didn't reject religion. The third is wrong as colonists weren't forced to follow one religion. The fourth is wrong as it wasn't based on Puritan principles. The first option is correct because the level of religious tolerance in his colony was unprecedented at that time.

Answer:

A. its degree of religious tolerance had never been tried before.