Which of the following spatial patterns is best explained by bid-rent theory? A. Concentric rings of different agricultural activities surrounding a city in the midwestern United States

B. Rural-to-urban migration increasing the population density to eastern China

C. Linear settlements located along a major road in a densely forested area of Brazil

D. Dispersed settlement throughout a large mountainous area of Switzerland

E. The conversion of agricultural land to suburbs surrounding a city in the southeastern United States