What does the 'Rule of Evidence' state regarding partnership agreements?

The correct understanding of the role of written agreements in partnerships aligns with the view that partnership agreements do not generally need to be in writing unless required by law. Most jurisdictions permit partnerships to be formed through oral agreements, and these can be effective in establishing a partnership relationship. However, there are certain situations where the law may impose a requirement for a written agreement, such as when the partnership involves real estate transactions, which typically fall under the statute of frauds.

In practice, while a written agreement can help clarify the terms of the partnership and can be easier to enforce, it is not a strict requirement for the validity of a partnership. This flexibility allows for informal partnerships to form based on mutual understanding and intention without the necessity of formal documentation. Therefore, the essence of option B reflects the correct principle about the nature of partnership agreements in most contexts, emphasizing the sufficiency of oral agreements unless specific laws dictate otherwise.