The sentence from the passage that could be used to support the idea that Ellen has done this before is:
Based on the given question, we can see that for a person to have done something before, then he would have a sort of familiarity with the object and would have little trouble performing this action again.
As a result of this, we can see that Ellen shows that she has performed the action before when she refused to allow someone to hurt her feelings once more as it shows that it has been hurt before.
Therefore, the correct answer is option A
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