Choose the sentence in which the italicized pronoun agrees in number with its italicized antecedent or antecedents.                a.  mary  and  jill  won't eat  hervegetables.      b.  maureen called the  children  for  hismeal.      c.  the  boys  want  their  dessert now.      d.  the waiter refilled their  glasses  as they emptied  it.