CMU college of comp sci requirements?

I’m most likely going to major in computer science, so I’m really interested in aplying to CMUs school of computer science. These are the requirements for classes listed on the website:
4 years of English
4 years of Mathematics (“should include at least algebra, geometry, trigonometry, analytic geometry and pre-calculus, though we prefer that students have calculus.”)
1 year of Physics
2 years of Chem, Bio, or CS
2 years of Foreign Language
3 electives

I will have taken 4 years of English, 4 years of math, 2 years of physics, 3 years of foreign language, a lot of electives, 1 year of chem, 1 year of bio, and a semester comp math course. When it says 2 years of chem, bio, or CS, does it mean that I need either 2 years of chem, 2 years of bio, or 2 years of CS? Or does taking one year of bio and one year of chem meet the requirement?

I’m a junior rn and my this is my schedule for next year:
Senior year

AP Gov
AP physics E&M
journalism/woodshop
Lunch
Honors Linear algebra
AP Lang
AP Spanish
Honors computational math/health

The slash represents semester courses. I have to take a practical arts (woodshop) and health, but the rest I chose. If I need to add either chem or bio to meet application requirements, how should I change my schedule?

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I had 1 year each of Chem, Bio, and CS, and was accepted, so I’d assume 2 years total in those subjects is fine.