What should the administrator check on Switch-2 to resolve this issue?

Refer to the exhibit.

A network administrator executes this command on an ArubaOS switch, Switch-2:

Switch-2(config)# ip route 10.1.100.0/24 10.1.1.1

The administrator successfully pings Device 1 at 10.1.100.42 from Switch-2.

However, Device 2 cannot ping Device 1.

The administrator confirms that Device 1 is correctly set up.

What should the administrator check on Switch-2 to resolve this issue?
A . that ARP proxy is enabled
B . that IP routing is enabled
C . that spanning tree is disabled
D . that ICMP is enabled

Answer: B