Explanation

This tests fraction comparison. In decimals: 7/9 ≈ 0.778, 11/14 ≈ 0.786, 3/4 = 0.75, 10/13 ≈ 0.769, so the largest is 11/14. Exactly: cross-multiplying 11/14 against 7/9 gives 11 × 9 = 99 versus 7 × 14 = 98, confirming 11/14 wins. Option (a) 7/9 is the trap — it looks large but falls short. Hence option (b).