(1) As soon as Loraine arrived in town, she phoned Dee. (2) However Dee was not home. (3) Discouraged, by this Loraine walked four blocks to a coffee shop. (4) She hoped Darlene her old friend would be there. (5) When she got to the coffee shop, Loraine found that Darlene was not there. (6) Loraine asked one of the waitresses where Darlene was, and she learned that Darlene had moved to Delaware. 4. Which sentence in the passage contains a parenthetical element that should be set off by commas? A. Sentence 6 B. Sentence 4 C. Sentence 2 D. Sentence 1