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      Question

      In the question given below, a passage is followed by

      three statements which may or may not be inferred from the passage. Select the correct combination of statements that can be inferred. Passage: A global study found that air quality in urban areas significantly improves when public transportation systems are expanded and made more efficient. Cities with extensive bus and rail networks tend to report lower levels of nitrogen dioxide and particulate matter. The researchers also observed that fewer private vehicles on the road correlated with better respiratory health outcomes in city dwellers. Statements: I. Expanding public transport may encourage people to use fewer private vehicles. II. Air pollution in cities is partially caused by private vehicle emissions. III. All cities with poor air quality have inefficient public transport systems.
      A Only I Correct Answer Incorrect Answer
      B Only II Correct Answer Incorrect Answer
      C Only I and II Correct Answer Incorrect Answer
      D Only III Correct Answer Incorrect Answer
      E All I, II, and III Correct Answer Incorrect Answer

      Solution

      Statement I:
      The passage mentions that air quality improves when public transport is expanded, and that fewer private vehicles correlate with better air — we can infer that better public transport may reduce private vehicle usage. Statement II:
      The passage says that fewer private vehicles correlate with better air quality and respiratory health, implying that private vehicles contribute to pollution. Statement III:
      The passage never states that all cities with poor air quality have inefficient public transport. That’s a generalization not supported by the passage.

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