Answer:
Welty chooses to use short sentences and a quick pace in order to make the ending of "A Visit to Charity" feel frenzied and panicked To reflect Marian's emotional state as she gets away from the old women
Explanation:
There are a lot of twists and shocking moments through the story that confuses and trigger different feelings and mental states on Marian, she looks for a personal benefit from the beginning, when she is supposed to have an act of charity towards the old ladies, at the end Marian is shocked, and perhaps a bit scared not precisely moved by the old ladies as she fastly leaves the place.