What Texas natural resource was most vital to the U. S. war effort?

A Petroleum, or oil, was the most vital Texas natural resource

B Corn was the most vital Texas natural resource

C Lumber was the most vital Texas natural resource
Sand was the most vital Texas natural resource

yes

explanation:

why

the government paid religious orders to provide basic education to native american children on reservations. in the late 19th and early 20th centuries, the bureau of indian affairs (bia) founded additional boarding schools based on the assimilation model of the off-reservation carlisle indian industrial school.