Correct option is D
Option (d) is the correct order of the given sentence.
• The phrase “to write lucid prose” is a purpose phrase and can correctly begin the sentence to set the purpose first.
• After that, the main clause needs a subject, so “a writer should have” comes next.
• Then we add the required qualities: “a clear mind” and “and a good command of the language”.
• This order forms a meaningful, grammatically correct sentence with a clear purpose → subject → requirement structure.
Correct sentence formed:
To write lucid prose a writer should have a clear mind and a good command of the language.