Final answer:
The Texas High Plains are characterized by a temperate grassland climate, which is true to the description given. They have a semi-arid climate with extreme temperature variations and low rainfall due to the rain shadow effect.
Step-by-step explanation:
The statement that the continental steppe is common in the Texas High Plains, which experiences extreme temperature ranges, low humidity, and minimal rainfall, and that this region has a semi-arid climate with mild winters is true. The Texas High Plains, along with other regions such as eastern Montana and western North Dakota in the United States, are characterized by a temperate grassland climate, which is also known as prairies or steppes. These areas exhibit significant annual fluctuations in temperature with hot summers and cold winters, and their semi-arid type B climate is consequential of the rain shadow effect, resulting in low rainfall and significant day-night and seasonal temperature variations.