An inspection VPC hosts stateful appliances for traffic between two spoke VPCs in different Availability Zones. Which two design elements are essential for symmetric inspection? Select 2 answers.

1. Propagate direct spoke routes that bypass inspection for return traffic.
2. Route both forward and return traffic through the inspection path.
3. Use an internet gateway to make the Transit Gateway route tables symmetric.
4. Enable appliance mode on the inspection VPC Transit Gateway attachment.
5. Disable all health checks so each flow remains on a failed appliance.