[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 is done, could you please answer the following question: What kind of graphics cards do these laptops have? 

A. All Nvidia Graphics
B. All AMD Graphics
C. A mix of Nvidia and AMD Graphics
D. Integrated Intel Graphics only
E. None of above

[YOU (AI assistant)]: 