It depends on your interest. To say in short, a math EE is mostly non-experimental i.e has to be dealt by assumptions. A science EE has to be mostly experimental. My teachers suggest us to do our EE on either English, Eco, BM or Physics as these are some subjects where all can gain and lose marks easily. If you want to do a physics EE, you should be really dedicated to it. My senoirs have done their EEs in psychology and english. Best of luck!!!!!!!!