Weegy: The answer is B.
She hoped Darlene her old friend would be there contains a parenthetical element that should be set off by commas
parenthetical element, is any sentence element that interrupts the forward movement of a clause. [ An interrupter is set off from the clause it interrupts by parenthetical punctuation.
Parenthetical elements vary in intensity, and their relative strength is indicated by the form of punctuation used ... (More)