The MOST likely reason Puritans decided to establish the Massachusetts Bay Colony in <em>1620</em> was because of "religious freedom."
This is evident the first governor of Massachusetts Bay Colony, John Winthrop, claimed that the group of Protestants was settling on "a city upon a hill,” which was considered a new English Israel.
The Puritan groups would later settle in other areas such as New Haven Colony, the Connecticut Colony, and Rhode Island.
Hence, in this case, it is concluded that the correct answer is option C. "Religious freedom."
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