Final answer:
The dispute between John Proctor and Thomas Putnam in Act I of 'The Crucible' is about land boundaries (A). This conflict is a representation of deeper tensions within the community.
Step-by-step explanation:
The dispute between John Proctor and Thomas Putnam in Act I of The Crucible revolves around land boundaries. This conflict highlights the undercurrents of tension and greed that exacerbate the witch trials in the play. Both men are influential figures in their Puritan community, and their contention over land ownership represents larger societal and personal conflicts. Although financial disagreements may be implied, the core issue explicitly mentioned is over land and the rightful ownership of it. Therefore, the answer to this question is A) Land boundaries.