Answer:
The most obvious landscape and climate change if we travel from Houston to El Paso would be high elevation as you move west and it gets drier.
Step-by-step explanation:
A is not correct because Houston is much wetter than El Paso, and is also on a lower elevation than El Paso.
B is correct because the topography of Texas changes in the manner that it starts off as very low and flat in the eastern part and gradually gains on elevation as we move toward the west, and the east is the wettest part, while the west is the driest.
C is not correct simply because Houston is located on the east, while El Paso is on the west, not the other way around.
D is not correct because the east has a far lower elevation than the west, as well as much more precipitation.