Rearrange the following sentences in correct order to make a meaningful passage. 1. The group forwarded the compiled results to the research unit. 2. Raw feedback forms were collected from various channels. 3. Each file was cleaned and standardized before analysis. 4. Duplicate entries were removed using automated checks.

Explanation

The correct option is (a). The correct sequence is 2-3-4-1 because it follows the standard data-processing workflow: collect data, clean/standardize it, remove duplicates through checks, and then forward the final compiled results. Sentence 2: Collection is the natural starting point: raw feedback forms are gathered first. Sentence 3: Cleaning and standardization are done before proper analysis and further processing, as stated explicitly (“before analysis”). Sentence 4: After standardization, automated checks can reliably detect duplicates and remove them. Sentence 1: Forwarding compiled results is the final step after preparation and validation. Sequence clue: Words like “raw,” “before analysis,” and “compiled results” indicate the correct chronological order. So the correct answer is (a)