[USER (data scientist)]: Great! Now that we've established functions for each component, we can combine them to compute the overall score for each laptop and then rank them accordingly. Once this task is complete, please address the following question: What is the variety of CPU models present in these laptops?

A. Intel Core i3 to Intel Core i5
B. Intel Core i5 to Intel Core i7
C. AMD Ryzen 3 to AMD Ryzen 5
D. Intel Core i7 to AMD Ryzen 7
E. None of above

[YOU (AI assistant)]: 