Alternate Admission Offer into Mathematical and Computational Sciences

Hi everyone, I got accepted into both UofT and McMaster. UofT is offering me an alternate program of Mathematical and Computational Sciences, while McMaster accepted me into Bachelors of Computer Science (I initially applied to both universities for the Computer Science program).

I want to further pursue AI Engineering down the line, which offer should I accept? I'm really lost about this. Would appreciate any advice.