You created a new VPC for your development team. You want to allow access to the resources in this VPC via SSH only. How should you configure your firewall rules? 

Answer options:

A. Create two firewall rules: one to block all traffic with priority 0, and another to allow port 22 with priority 1000. 
B. Create two firewall rules: one to block all traffic with priority 65536, and another to allow port 3389 with priority 1000. 
C. Create a single firewall rule to allow port 22 with priority 1000.
D. Create a single firewall rule to allow port 3389 with priority 1000.

C

Reference: https://geekflare.com/gcp-firewall-configuration/