【单选题】Although the American civilization took over and replaced the frontier over a century ago, the heritage of the frontier is still evident in the United States today. Many people are still fascinated by...
A.
the frontier area is more civilized and developed than other parts of the country
B.
the frontier experience is greatly romanticized in today's popular movies and TV shows
C.
the frontier period represents a time when the traditional basic Americans values were expressed in their purest form
D.
the lifestyle. of the Native American Indians who live in the frontier area is still mysterious and appealing