The correct answer is B, Cost Explorer. Cost Explorer is a tool within the AWS Billing and Cost Management console that allows users to visualize and analyze their AWS costs and usage. It provides interactive charts, graphs, and reports that depict spending patterns, usage trends, and cost breakdowns over time. This tool is specifically designed to offer graphical representation of data, which is what the question is asking for. The other options, such as AWS Bills, AWS Cost and Usage Report, and AWS Budgets, are related to billing and cost management but do not provide the graphical visualization that Cost Explorer does.