Steam power and iron combined to revolutionize transport, which in turn had further implications. Improvements in road construction and sailing had occurred, but shipping heavy freight over land remained expensive, even with the use of rivers and canals wherever possible. Parallel rails had long been used in mining operations to move bigger loads, but horses were still the primary source of power. However, the arrival of the steam engine initiated a complete transformation in rail transportation, entrenching and expanding the Industrial Revolution. As transportation improved, distant and larger markets within the nation could be reached, thereby encouraging the development of larger factories to keep pace with increasing sales. Greater productivity and rising demands provided entrepreneurs with profits that could be reinvested to take advantage of new technologies to further expand capacity, or to seek alternative investment opportunities. Also, the availability of jobs in railway construction attracted many rural laborers accustomed to seasonal and temporary employment. When the work was completed, many moved to other construction jobs or to factory work in cities and towns, where they became part of an expanding working class.
Paragraph 4 implies which of the following about the transformation in rail transportation?
- A.Because railway construction employed mostly rural laborers, unemployment increased among urban workers.
- B.It resulted in more trade within the country, but less trade with markets that could be reached only by ocean shipping.
- C.It made shipping freight overland to distant markets less expensive.
- D.It resulted in higher wages for factory workers.
저는 B번골라서 틀렸는데 B번 문장중 but이후의 내용이 지문과 완전 어긋나서 오답이란걸 알겠는데요
C번이 왜 정답이 되는지 정말 모르겠어요
지문에 제가 초록색으로 칠한부분을 노고 보면 C번도 정답이 되기 힘들지 않나요??
너무 어렵네요 도움 부탁드립니당