Discussion
Choose the most logical order of the sentences from among the four given choices to construct a coherent paragraph.
Scientific research is the systematic and structured process of discovering new facts and uncovering their relationships to other facts.
A) It was only when men began to observe nature closely, with open minds, and conduct experiments that they started making significant strides in various fields, such as medicine and chemistry.
B) The importance of scientific research can be traced back to the ancient times when medicine was in its early stages, and major operations were similar to death warrants.
C) Curiosity is the driving force behind scientific research.
D) It motivates individuals to observe nature closely and record what they observe.
Answer: B
The key gives BACD. The first line defines scientific research. Sentence B follows by tracing its importance back to ancient times when medicine was in its early stages. Sentence A then says that progress came only when men began to observe nature closely and conduct experiments, which continues the history. Sentence C moves to what drives research, curiosity, and sentence D explains that curiosity motivates people to observe nature and record what they see. The orders beginning with A or with D start in the middle of the story, because A talks of a time 'only when' and D of 'It' with nothing to refer to.
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