I've already set my mind on history, politics and R.E. at A level , but I'm not sure what to pick as my 4th choice. I originally wanted to go for moving image arts (as I really enjoyed it at GCSE) or psychology, but apparently universities don't value either of those subjects. Basically, should I just focus on getting the best grades I can on those three subjects, or take on a STEM subject just in case? ( I did physics and maths at GCSE and I'm predicted an A for both).