Concept:Partners use a formal written agreement to govern how their partnership is run internally.
Explanation:The partnership deed is the document that contains the internal regulations of a partnership.
It states the rights, duties, profit-sharing ratio, capital contributions, and other rules that bind the partners.
This deed acts as the contract that guides the daily conduct of the business.
A law or constitution applies generally, not specifically to the partnership's internal rules.
An article is not the correct term for partnership regulations.
Answer:A. a deed