UK or HK for uni?smallbang pls

I am struggling on choosing university courses...

I have offers from all 5 choices in UCAS and one from cuhk. They are completely different courses. For the UK ones, leeds, nottingham and surrey are related to food science and nutrition. However, my AS chem result was C only so I decided not to carrying on with Science. But the other two choices are 'food marketing and nutrition' from newcastle and ' food marketing and business economics' from reading. I haven't study business related subject before, would it be too risky for me to study? On the other hand, I am afraid I cannot cope with the difficulties in Biology and chemistry.

For the cuhk one, it's a bba hotel and tourism management. Assuming parents can afford the money needed, the grades required can be met and I am interested in both areas, which way should I choose? I have been studying in the UK since GCSE but the life in here ( campus and friendship with other locals) are not as expected.. Please give me some advice. I have to admit that I am unsure about what to do in the future but I just want to go for a degree which seems to have a better employability. I am also thinking about working in the UK after graduated as well, if I study in here and the placement year goes well.. I know it's hard to predict what the employability trend would be in the future.. but I just want to gather another piece of advice.

Thank you very much for listening and I hope to hear from you soon because the deadline for submitting the deposit ( non refundable) and accepting the offers are a few days later.