Which problem with the dispatcher flush agent is causing this issue?

New content is not visible on the website when accessing it via the dispatcher.

– Replication from author to publish works fine

– Dispatcher flush agent is present under /etc/replication/agents.author on the Publish instance, and enabled

– The checkbox for Dispatcher flush agent configuration is ticked for enabled, when reviewed on the author instance

– Rules in the dispatcher configuration are correct

Which problem with the dispatcher flush agent is causing this issue?
A . It does not have enough permissions to receive the activation.
B . It is not configured properly in the dispatcher configuration.
C . It is configured properly but uses the incorrect transport user.
D . It is configured properly but located in the wrong path.