3rd A-Level option for Medicine

I’m currently in Year 11 and choosing my A Levels with hopes of doing Medicine at university. My GCSE options include Triple Science, Spanish, RE & Sociology and I am predicted all A/A* at GCSE. I’m very sure that I want to do Biology and Chemistry at A Level since it is required for most med schools but I’m stuck on choosing my third option. Maths and Physics are out of the picture completely as I don’t really enjoy them and would find them hard. I want to pick a humanity such as Politics or Sociology or even Psychology as my third option but I don’t know which one to pick. I am worried that picking a humanity as my third option will give me a disadvantage to other applicants. Can anybody give me advice on which to pick out of the 3? Also has anyone who did do a humanity as their third option let me know how their med applications went and if they felt like they were at a disadvantage.