Final answer:
Option (A), The simile 'Like a broad river sighing through its reeds' suggests a sense of contentment and satisfaction, reflecting a tranquil and soothing imagery akin to a calm river.
Step-by-step explanation:
The simile in line 12, 'Like a broad river sighing through its reeds,' suggests a sense of contentment and satisfaction. This simile paints a picture of tranquility and a gentle, soothing movement, much like a river flows steadily and calmly through the reeds.
It evokes a scene where noise is not disturbing but rather a part of the peaceful ambiance, likely implying that the child is in a state of gentle repose or a moment of reflective calmness.