Directions: Sentences given in each question, when properly sequenced, form a coherent paragraph. Each sentence is labelled with a letter. Choose the most logical order of the sentences from among the four given choices to construct a coherent paragraph.
Explanation:
(c) EDACB is the correct answer choice. DA is a mandatory pair, as ‘in the early 1990s’ in D links chronologically with ‘since then’ in A links chronologically with ‘in the early 1900s’ in D. Furthermore, D refers to ‘such tests’ and, therefore cannot start the paragraph. CB also emerges as a closely-linked pair. ‘In other words’ in B summarizes succinctly the idea introduced in C. Other options do not meet all the above requirements and hence do not flow logically from start to finish.
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