To identify which Pods are causing the DiskPressure node condition without having execute access to workloads and nodes, the best approach is to use Google Cloud's monitoring tools. Option A suggests checking the node/ephemeral_storage/used_bytes metric, which provides information about the ephemeral storage usage at the node level but does not pinpoint specific Pods. Option B, checking the container/ephemeral_storage/used_bytes metric, is more precise as it provides ephemeral storage usage at the container level, which can help identify the specific Pods causing the issue. Options C and D involve using commands that require execute access to the nodes, which the scenario explicitly states you do not have. Therefore, the correct answer is B, as it allows you to identify the problematic Pods without needing direct access to the nodes.