Which of the following is not a service offered by Alibaba Cloud?

The answer identifies Google Cloud Functions as the service that is not offered by Alibaba Cloud. This is correct because Google Cloud Functions is a serverless execution environment provided by Google as part of their cloud services, specifically designed for executing code in response to events.

In contrast, MaxCompute, Function Compute, and Resource Manager are all services that Alibaba Cloud offers. MaxCompute is a big data computing platform, Function Compute allows users to run code without managing servers, and Resource Manager helps manage resources efficiently in a cloud environment. The presence of these services aligns with Alibaba Cloud's portfolio, which provides various solutions for cloud computing, big data, and resource management.

Thus, distinguishing Google Cloud Functions from Alibaba Cloud’s services emphasizes the importance of recognizing the specific offerings of different cloud providers.