Answer:
C :natural gas
Explanation:
Natural gas is a mixture of gases which are rich in hydrocarbons. All these gases (methane, nitrogen, carbon dioxide etc) are naturally found in atmosphere. Natural gas reserves are deep inside the earth near other solid & liquid hydrocarbons beds like coal and crude oil. Also it's an item for natural resource.
Failed the trade for the Native Americans and the supplies didnt come because- and lack of food and it was winter and they got nothing. So many people died during that period