Question: Wane irin ƙarfi ne wanda ya ke isasshe kuma sananne a jihar Nevada da ke samar da gudunmawa mai amfani ga buƙatun jihar na sabunta makamashi?
Options:
ma'adanin kwal
ƙarfin da ake samu daga zafi
gas na haƙiƙa 
man metur
Answer: B