Direction : In the following question, a sentence is given with three words marked as (A), (B) and (C).
Among the options choose the correct order of words that is required to make the sentence grammatically and contextually correct. If no change is required, mark 'No correction required' as the answer.
The study successfully combined (A) methods to turn a/an robust (B) set f observations into a/an incidental (C) understanding.