Read the excerpt.[We] combine ourselves together into a civil Body . . . for our better Ordering and Preservation . . . [to] frame such just and equal Laws . . . for the general Good of the Colony.–Mayflower Compact

The excerpt specifically promises that the colonists will “frame such just and equal Laws.” That directly matches the promise to pass just and equal laws. The other choices describe related ideas in the excerpt, but B states its clearest specific commitment.

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