I bet the money was so she could get a cab home after grocery shopping . Argh , having $ 50 would have been nice . But knowing I probably made a difference in someone 's week is nicer . Still , the feeling of finding an envelope full of money .

Question: What was the need of money ?
Answer: The money was enough for both the cab home and grocery shopping .She cab home first before grocery   shopping .None of the above choices .The amount was less for both cab home and grocery shopping .