The correct answer is B, Amazon EC2. Amazon EC2 provides resizable compute capacity in the cloud, allowing the company to launch virtual machines with the necessary resources for their data processing workload. The task is expected to run for 5 hours, which is within the capabilities of EC2 instances. AWS Lambda, while a serverless compute service, is designed for short-lived, event-driven workloads and has a maximum execution time limit of 15 minutes, making it unsuitable for a 5-hour task. AWS CodeDeploy is for automating code deployments and AWS Wavelength is for building and running applications on the edge using 5G networks, neither of which are appropriate for this data processing workload.