I am thinking of possibly retaking C3 during my gap year along with C4, I want to do this because I got 82/100 in my gap year and feel that I could possibly get an A* if I do extremely better in both modules with a high chance of an A if I get 5 more UMS on my C4, however do we have to retake the coursework too? Because I got 18/18 on it and I think it would be quite a hassle doing new coursework again.