To the op. French is a good choice. I wanted to do it myself but my school didn't offer it. On the flip said as I said before Physics has its merits as well. It is true though that medical schools like to see people with diversity. I would actually advise you to do both imho, if you are allowed. I did Physics, Biology, Chemistry, Pure Mathematics and get this....Accounting, lol. So yea. if you can go for the all science + one tangent subject go for it. If not, do what you find more interesting because it'll be that subject that you'll score better in.