You are tasked to configure the DHCP server to lease the last 100 usable IP addresses in subnet to. 1.4.0/23. Which of the following IP addresses could be teased as a result of the new configuration?

210.1.55.200 is not within the 10.1.4.0/23 subnet.

10.1.4.254 is a usable IP in the subnet, but it is not among the *last 100* usable IP addresses, which start at 10.1.5.155.

A /23 subnet (10.1.4.0/23) means the network ranges from 10.1.4.0 to 10.1.5.255. The usable IP addresses are 10.1.4.1 through 10.1.5.254. There are 2^9 - 2 = 510 usable IPs. The last 100 usable IP addresses would therefore be from 10.1.5.254 - 99 = 10.1.5.155 to 10.1.5.254. The IP address 10.1.5.200 falls within this calculated range.

10.1.4.156 is a usable IP in the subnet, but it is also not among the *last 100* usable IP addresses, which are located at the higher end of the subnet's address range (within 10.1.5.x).