After Proofreading for Content,organization and Tone of the Message,what Should

After proofreading for content,organization and tone of the message,what should be the next step in the proofreading process?

A) Proofreading to ensure the document meets the needs of the audience
B) Proofreading for tone
C) Proofreading to improve readability
D) Proofreading to read for spelling and grammar
E) Proofreading for overall feel of the document