Question

Scientific discoveries are often thought of as the result of ------- effort, but many discoveries have, in fact, arisen from ------- or a mistake.

• A. Conscientious . . a method
• B. Incidental . . a mishap
• C. Collaborative . . a design
• D. Persistent . . an extension
• E. Systematic . . an accident

Answer 1

Answer: (E)

Systematic . . an accident

Option E is the correct option as the sentence could be:

Scientists discoveries are often thought of as the result of systematic effort, but many discoveries have, in fact, arisen from an accident or a mistake.

as supporting my answer the explanation could be scientists discoveries are only in a systematic manner they follow each step with proper hierarchy.

and some facts and discoveries are arisen by mistake or by accidentally during following these systematic steps.

Other options are not correct as in option A the combination is not perfect because a method or a mistake not suitable

In options B, C, and D also the combination is wrong as the discoveries cant be incidental, design, persistent respectively.

Hence option E is the correct answer.