PART A: Why is Mr. Winter's and Harriet's interaction at swim club significant to the story's plot? A Mr. Winter knows Harriet to be mature for her age, so he asks Harriet to take the unusual babysitting job to calm his wife's concerns. B Mr. Winter asks her to babysit even though she has never seen him before, implying that he doesn't care who babysits Charles and that he is a neglectful father. C Harriet suspects that Mr. Winter only approached her to babysit because of her age and because she's a girl; this awareness is one of the first steps towards her growing up. D Mr. Winter asks her to babysit even though she has never seen him before; this unusual approach is a clue that something is off concerning the Winter family.