[USER (data scientist)]: Having assessed the storage and GPU features of laptops with robust CPUs and a minimum of 8GB RAM, let's now compare these laptops based on their operating systems (Windows or macOS) and other features. This will help us compile a list of potential options for your new laptop. We also require a pie chart to illustrate the distribution of operating systems among these potential laptop choices. Once this is done, we can address the following question: What are the available laptop options in this dataset that have a powerful CPU, at least 8GB of RAM, and either a Windows or macOS operating system? From these options, you can select from 8 Windows laptops, depending on your specific needs and preferences for other features like storage, GPU, and price. 
A. Limited to macOS laptops
B. Both Windows and macOS laptops
C. Limited to Windows laptops
D. No available options
E. None of above

[YOU (AI assistant)]: 