Answer:
c terraced farming
Step-by-step explanation:
in order to adapt to the dry environment in most of Texas, the Texans had to adapt and use certain methods such as;
Building dams and reservoirs - Texans built quite a lot of dams and reservoirs to enable them have water for various uses including farming. In 2013 it was estimated that Texas had over 7,000 dams though not all of these are functional.
Irrigation ditches - another water Texans have adapted is by building irrigation ditches to channel water to their farms and settlements.
Drilling for resources - In order to reach resources deeper underground, Texans drilled into the ground and have some of the most valuable drilling companies in the United States. Apart from oil, Texans drilled and pumped water using windmills.
Terraced farming is not one of the ways that Texans have adapted to their environment.