Read the passage. Opening section A research summary reports that investigators surveyed 310 commuters in May and found that many valued flexible departure times. The methods are described in past tense, but the interpretation is presented in cautious present tense because it states what the evidence suggests now. The report uses the term flexible scheduling. Revised section The discussion paragraph connects the survey result to workplace policy without claiming causation. [The sentence at this point is under review.] The authors recommend testing the idea in a larger sample. Which sentence preserves the terminology, present interpretation, cautious certainty, and formal tone?