Using the article "Otters play a vital role in the ecology of rivers":

"The Elizabeth River Project made an otter display. It is in Norfolk. People see wild otters there. There is an "Otter Spotter" program. People can share if they have seen otters."

What sentence helps the reader understand what display means?

a
There is an "Otter Spotter" program.
b
People see wild otters there.
c
People can share if they have seen otters
d
It is in Norfolk.