As I've already said in answer to your previous question (BTW, why do you have to keep asking the same questions over and over?), you shouldn't take A-level law, because law schools (universities) really hate that. And you certainly shouldn't take BTEC law, because universities by and large don't like BTECs, so if anything they'll hate BTEC law even more than A-level law. You've done well with your other two subjects, so don't go and ruin it by taking law, and certainly not any BTEC. How about picking a third facilitating subject, or failing that perhaps something like philosophy or classical studies or religion, which are all directly relevant to law.

You need a 3rd A level. Choose a hard A level subject do not study a BTEC in anything.

If you want to study at university, you need to take A-levels

Many law degrees prefer you not to study law; look at their entry requirements (you can start your research on the UCAS website)

Most top universities don't accept BTEC qualifications