The correct option is 145.4.2.55/26. This is because it falls within a valid range of IP addresses that can be assigned to a device in a network. Option B (237.6.1.2/24) falls within the range of multicast addresses, which are reserved for group communication and cannot be assigned to individual devices. Option D (127.3.1.4/28) falls within the loopback address range, used by a host to communicate with itself and also cannot be assigned to network devices. Option A (192.168.10.112/30) can be a valid address but has limited host capacity, only allowing for 2 hosts, which may not be practical in most scenarios. Therefore, option C is the most appropriate choice.