United States.
36. The major problems with America’s railroad system in the mid 19th century lay in _____.
(A) poor quality rails and unreliable stopping systems
(B) lack of financial support for development
(C) limited railroad lines
(D) lack of a transcontinental railroad
36. The major problems with America’s railroad system in the mid 19th century lay in _____.
(A) poor quality rails and unreliable stopping systems
(B) lack of financial support for development
(C) limited railroad lines
(D) lack of a transcontinental railroad