This question, along with Q7590, is based on an unprovided set of conditions or a paragraph describing the ownership of mobile phones by different individuals (P, O, M, N, L). Without the initial data, a definitive answer cannot be reached solely from the question itself. However, based on the options and the related question (Q7590), which offers "M- Oppo" as a correct combination, it is highly probable that the missing information establishes that M owns an Oppo phone.