Which of the Following Statements About Managing Emphasis in a Sentence

Which of the following statements about managing emphasis in a sentence is true?

A) Short sentences carry less emphasis than long, involved ones.
B) Beginnings and endings of business messages are particularly good places for using long sentences to emphasize your content.
C) A long closing should be used in business messages to ensure that the reader is left with an important final thought.
D) If a sentence contains two ideas that are equally important, the ideas should be joined with "and" to give them equal emphasis.
E) If a sentence contains two ideas that are equally important, one idea should be subordinated to the other.