A company wants to migrate a critical application to AWS. The application has a short runtime. The application is invoked by changes in data or by shifts in system state. The company needs a compute solution that maximizes operational efficiency and minimizes the cost of running the application.
Which AWS solution should the company use to meet these requirements?

A. Amazon EC2 On-Demand Instances
B. AWS Lambda
C. Amazon EC2 Reserved Instances
D. Amazon EC2 Spot Instances