A company plans to use AWS Managed Services (AMS) for operational support. Which AMS feature matches the company's need for managed landing zones and network operations?

The correct answer is Landing zone and network management because AWS Managed Services (AMS) provides operational support for core AWS infrastructure components, including the setup and ongoing management of secure, multi-account AWS environments (landing zones) and network services. This directly addresses the company's need for managed landing zones and network operations. Customer application development is incorrect because AMS focuses on managing the underlying AWS infrastructure, not on developing custom applications for customers. DevSecOps pipeline configuration is incorrect as AMS provides operational support for existing environments, not the configuration of development pipelines. Application log monitoring is a feature of AMS, but it is a specific operational task, not the overarching feature that encompasses both landing zones and network operations.