You have an application hosted on a Compute Engine virtual machine instance that cannot communicate with a resource outs

[answerhappygod]

You have an application hosted on a Compute Engine virtual machine instance that cannot communicate with a resource outside of its subnet. When you review the flow and firewall logs, you do not see any denied traffic listed.
During troubleshooting you find:
"¢ Flow logs are enabled for the VPC subnet, and all firewall rules are set to log.
"¢ The subnetwork logs are not excluded from Stackdriver.
"¢ The instance that is hosting the application can communicate outside the subnet.
"¢ Other instances within the subnet can communicate outside the subnet.
"¢ The external resource initiates communication.
What is the most likely cause of the missing log lines?

A. The traffic is matching the expected ingress rule.
B. The traffic is matching the expected egress rule.
C. The traffic is not matching the expected ingress rule.
D. The traffic is not matching the expected egress rule.