Refer to the exhibit. Users report that IP addresses cannot be acquired from the DHCP server. The DHCP server is configured as shown. But about 300 total noncurrent users are using this DHCP server…

Configuring a bigger DHCP lease time would exacerbate the problem by holding onto addresses for even longer, making them less available for new or returning clients.

Adding a new network (192.168.2.0) would expand the address space, which is not addressing the issue 'within the current resources' and the problem of *noncurrent users* holding addresses.

Modifying the subnet mask to 255.255.254.0 would expand the address pool, which is equivalent to adding more addresses and thus not a solution 'within the current resources' to address lease management.

If many noncurrent users are holding onto IP addresses for longer than their active period, shortening the DHCP lease time will cause addresses to be returned to the pool more frequently. This allows the DHCP server to reallocate those addresses to active users, resolving the exhaustion issue without needing to expand the IP address range.