An engineer is using a tool to run an ICMP sweep of a network to find devices that are online. When reviewing the results, the engineer notices a number of workstations that are currently verified as being online are not listed in the report. The tool was configured to scan using the following information: Network address: 172.28.16.0 CIDR: /22 The engineer collected the following information from the client workstation: IP address: 172.28.17.206 Subnet mask: 255.255.252.0 Which of the following MOST likely
A. The scanned network range is incorrect
B. The subnet mask on the client is misconfigured
C. The workstation has a firewall enabled
D. The tool is unable to scan remote networks