Final answer:
Pennsylvania, under William Penn, was known for its religious freedom, respect for Native American cultures, and diverse European immigration, making it a tolerant and progressive colony in comparison to others of the era.
Step-by-step explanation:
William Penn's colony of Pennsylvania was notably tolerant for several reasons. a) Penn ensured religious freedom, welcomed various religious groups, and did not establish an official church, unlike the New England colonies that practiced Puritanism. He also respected Native American cultures by establishing peaceful relations, buying land at fair prices, and forming alliances with tribes such as the Lenape (Delaware) and the Susquehannocks. Furthermore, Penn's liberal land policies and the promise of equal rights and financial opportunities led to diverse European immigration, with settlers from various social ranks and countries like England, Wales, Germany, and Scotland forming a pluralistic society. In conclusion, option (a) from the question accurately describes the tolerant nature of Penn's policies in Pennsylvania.