One thing that a person visiting Ka Papa Lo$$i o K$\backslash$bar $($a$)$ newai should learn is

A$.$ That there are many varieties of taro.

B$.$ That the engineering of water resources is critical to food production.

C$.$ That it took hard work, risk and protest to recreate the garden.

D$.$ That Kanaka Maoli were resourceful and effective land managers.

E$.$ Any of the above, really.