The correct answer is A: Incorrect configuration of the container runtime settings. Containers are designed to be isolated from the host system and other containers. When a container accesses resources beyond its allocated privileges, it's often due to misconfigurations in the container runtime settings which can include improper security profiles or privilege settings for the container. B: Lack of sufficient logging is incorrect because logging is a method for recording events, not a preventative control for resource access. C: Out-of-date operating system on the host can create vulnerabilities, but the question specifically describes access beyond allocated privileges, which is more directly related to configuration settings than OS vulnerabilities. D: Insufficient network segmentation refers to dividing a network into smaller parts to control traffic and enhance security, but within the context of containerization, resource access on the host system is primarily controlled through the container runtime environment, not network segmentation.