Which of these is NOT an effective statement of purpose for a document? A. The purpose of this document is to help readers install the 3.0 update to our Wizar-Tater software. B. The purpose of this document is to help employees understand why they will have to pay higher insurance premiums. C. The purpose of this document is to change the landscape of enterprise software. D. The purpose of this document is to explain whether the company should adopt a health-promotion program.