A company has separate subnets for each floor. A technician has moved a device from one floor to another and manually configured only the static IP address. The device can reach other devices on the floor in the same subnet, but it cannot reach devices on other floors.
Which of the following should be configured to allow this device to work?

A.
Gateway

B.
SNMP

C.
Port speed

D.
MTU

E.
Subnet mask