Raldel is a partner in ABC Company. There are thiree other partners in ABC Company, Donatello, Michelangelo, and Leonardo. Rafael shares the management responsibilities with the other three (i.e. none of the partners are limited partners). Rafael just became in charge of the manufacturing processes of the products that ABC Company sells. Although ABC Company has purchased two of its important inputs for the manufacturing of these products from D Company for many years, when Rafael took over the manufacturing processes, he realized that these inputs are produced by F Company. It turns out that Rafael is also a limited partner in F Company (so although he doesn't manage F Company, he shares in the profits). Without telling Donatello, Michelangelo, and Leonardo, Rafael decides to have ABC Company purchase these inputs from F Company. Under what legal theory can Donatello, Michelangelo and Leonardo bring a claim against Rafael for making this decision