Refer to the exhibit. A network engineer notices that router R2 is failing to install network 172.16.33.1/32 in the routing table. Which configuration must the engineer apply to R2 to fix the problem?

A wildcard mask of 255.0.0.0 is syntactically incorrect for a standard access list; wildcard masks are inverse masks and should have zeros for bits that must match and ones for bits that can vary.

A wildcard mask of 255.255.255.0 is syntactically incorrect; it should be an inverse mask (e.g., 0.0.0.255 for a /24 network).

The access-list entry 'permit 172.16.33.0 0.0.0.255' uses a wildcard mask that matches any IP address within the 172.16.33.0/24 subnet. This range includes 172.16.33.1, thereby allowing the 172.16.33.1/32 route to be permitted and installed in the routing table if this ACL is used for filtering.

A wildcard mask of 255.255.0.0 is syntactically incorrect for a standard access list, as it does not follow the inverse mask convention for specifying network ranges.