Final answer:
The Act of Toleration led to increased religious freedom in New England, contributing to greater religious diversity, although Catholics still faced restrictions.
Step-by-step explanation:
The major shift in New England/Massachusetts society resulting from the Act of Toleration was a) Religious freedom increased. This Act permitted greater religious freedom for nonconformists, which meant that individuals in the colonies who did not follow the official church could now practice their religion more freely. However, it is important to note that this act did not extend to Catholics, who continued to face restrictions. The absence of an established church in several colonies signaled a significant move toward greater religious diversity in New England.