What extremely large southern area in the U.S. has venomous snakes?
Options:
- western texas
- feild
- amazon river
- high grass
- falling down
Please answer and provide answer explanation.

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
Western texas has venomous snakes. Western texas is an extermely large southern area in the U.S. The final answer: western texas.