Final answer:
The best evidence for the irony and amusement in the story comes from the ending where the mother's experience with contradicting advice comes full circle, highlighting human quirks and the ironic nature of giving and receiving advice.
Step-by-step explanation:
The best evidence for the idea that the author wants to amuse the reader by highlighting human quirks can be found in the story's ending, where the mother's experience with giving and receiving parenting advice comes full circle. Initially, she is overwhelmed by the contradictory advice given to her, but when she reluctantly tries a stranger’s technique for calming her child and it works, she expresses gratitude. Later on, when she attempts to offer advice to the same stranger, he dismisses her input, which wittily underscores the human tendency to offer advice but resist taking it from others. This play on human foibles reflects an ironic and amusing view of our nature, suggesting that while we all have something to contribute, we are just as often ready to ignore the insights of others, even when they are based on our own positive experiences.