However, don't care too much about this direction. There is no direction. From the initial test to the second test, the questions in all three directions are the same. Courses in these three directions will be the same in the future. Moreover, the direction you choose when you register is not counted, and your direction will be decided according to the tutor you choose in the future. Actually, it's just the direction of your graduation thesis.

Business English graduate students really only have two majors: business English research and foreign linguistics and applied linguistics (legal linguistics)

So, that's just the so-called direction that will be used when signing up. . . There is no difference in employment prospects. You should also know the direction of your graduation thesis or your major has a greater impact on employment.