we can find these words in the choice E: Virtually all patrons of the Pennsylvania restaurants in the study who were given a bill with “Thank you” written on it left a larger tip than they otherwise would have.
I think E is right.
come on lawyer. where r u ?

Virtually all patrons of the Pennsylvania restaurants in the study who were given a bill with “Thank you” written on it left a larger tip than they otherwise would have.
I think E is right.
come on lawyer. where r u ?

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