The store had been closed for two days; however, Murray still needed to get in.
Melodrama is a sentimental drama with stereotypical characters. It is a dramatic piece wherein its plot is focused more on the sensationalization of events to invoke emotional response from the audience, and its characters are pegged into a certain type where they project exaggerated emotions; however, the characters are not given the chance to evolve throughout its duration.
I say the answer to this is B. It leaves the impression of an unambiguous happy ending