Final answer:
Agriculture accounts for about 75 percent of Oklahoma’s land use.
Step-by-step explanation:
The industry that accounts for about 75 percent of Oklahoma’s land use is Agriculture. According to the given information, manufacturing and industry in general contribute to a significant portion of the state's GDP and workforce, but it does not specify that it accounts for 75 percent of land use. On the other hand, agriculture involves activities like farming and ranching, which require a large amount of land for cultivation and livestock.