Which of the following statements is true about a partner's authority?

In a partnership, the authority of a partner can be understood through implied authority, which refers to situations where a partner acts in a manner that is consistent with the usual business operations of the partnership. Implied authority arises from the partner’s role within the partnership and the nature of its business, allowing them to make decisions and take actions that would typically be expected of someone in that position.

For example, if a partner regularly engages in purchasing supplies for the business, that partner has the implied authority to enter into contracts for those purchases without needing explicit approval for each transaction. This concept is grounded in the understanding that partners are agents of the partnership, and their actions within the scope of their authority bind the partnership to third parties.

The other statements are not aligned with the principles of partnership law. The statement about partners needing express authority for every action overlooks the concept of implied authority that naturally arises in business operations. The suggestion that all partners automatically have authority unless revoked does not take into account the specific agreements or limits that might exist within the partnership. Lastly, while it's important for partners to communicate about their authority, they are not necessarily required to inform third parties of any lack of authority particularly if their actions are within the customary business practices of the partnership. Hence