Jenna Requested and Was Granted a Week's Vacation Time at the End

Jenna requested and was granted a week's vacation time at the end of June. Due to an unforeseen crisis at the office her boss now needs to tell her that she must work during that week instead of going on vacation.
-When communicating this message to Jenna, the best approach for her boss would likely be to ________.

A) state the main idea right away to get it over with
B) hint at the main idea and let Jenna read between the lines
C) tell Jenna the bad news first and then explain all the reasons why
D) build up to the main idea, stating the reasons, before actually giving her the bad news
E) give her the bad news right away so that she doesn't get impatient