 programs award a Master of Arts or Master of Science degree "in passing" or "in course" based on the graduate work done in the course of achieving the Ph.D. Students who receive such master's degrees are usually required to complete a certain amount of coursework and a master's thesis. Depending on the specific program, masters-in-passing degrees can be either mandatory or optional. Not all Ph.D. students choose to complete the additional requirements necessary for the M.A. or M.S. if such requirements are not mandated by their programs. Those students will simply obtain the Ph.D. degree at the end of their graduate study.Some programs also include a Master of Philosophy degree as part of the Ph.D. program.[20] The M.Phil., in those universities that offer it, is usually awarded after the appropriate M.A. or M.S. (as above) is awarded, and the degree candidate has completed all further requirements for the Ph.D. degree (which may include additional language requirements, course credi