It is a course which you decide by your own according to your own wish in which you are interested . But the main thing to be kept in mind is that we need to make our concepts clear on that particular topic then only we can get some more interest on that particular course . Course does not mean that on study course there are so many courses in this world like dancing, cooking, singing, playing etc. and many more so you should be mentally and physically fit for those courses. Then only you can gain more knowledge on that particular course.
Thank you.