what makes you think that any of us would know the answer, if you have a bit of initiative you would realize that the choice in a levels would put you at a slight disadvantage but would not prevent you from achieving an offer....
Yes. However you should be aware that law is a subject involving reading lots of books and writing lots of essays. If you are fine with that go for it,but if your interests/talents lie in numbers do a sciency or mathsy course.
You would still be considered by a lot of universities, dependent on grades of course, however, some analytically subjects, such as English or History would of shown you off much better.