Which service provides serverless computing in Azure? (AZ-900)

Correct answer: B) Azure Functions.
Azure Functions is the serverless computing service provided by Microsoft Azure. It allows you to run small pieces of code (functions) without the need to manage the underlying infrastructure, such as virtual machines or containers.

Here's a brief explanation of the other options:
A) Azure Virtual Machines: This is a service that provides on-demand, scalable virtual machines, but it is not a serverless computing service.
C) Azure Storage Account: This is a service that provides storage for data, but it is not a serverless computing service.
D) Azure Container Instances: This is a service that allows you to run Docker containers without managing the underlying infrastructure, but it is not a serverless computing service.

Azure Functions is the correct answer as it is the Azure service that provides serverless computing capabilities, allowing you to run your code without having to manage the underlying infrastructure.