Depends on the school.
My daughter got into W&L with two years - as well as others - Florida, UGA Honors, U of SC Honors, etc.
In her case, the third year wasn’t offered and I’m sure the counselor noted this. Plus, my daughter wrote it in the additional info.
But you’ll want to meet the requirements of the schools - and each will list what they require. Some want four years, many three years.
Yes, Bio, Chem, and Physics are a must…but three years of Physics was…well it’s too late to fix that now.
But yes, you should have bio no matter what - so I would personally place that as priority vs. language.
Plus, you are looking for value - and top top top top schools likely wont’ make your consideration set anyway.
In this case, I would prioritize bio over language.
But to answer your question - years is what they’re looking for, not proficiency although proficiency can help with placement.