When transforming a short story into a play, some a. metaphors might become similes. b. conflicts would go unresolved. c. details may be left out. d. characters would need different names.

When transforming a short story into a play, particular aspects of the "story" itself might be left out.  Short stores are designed to be read and considered by a solitary reader who can imagine the events being described. A play, however, is designed to be performed on stage, live, in front of an audience.  A play, by virtue of its structure, cannot offer all of the details that a short story can, especially in terms of internal narration, and a variety of different settings and locations.