Why Are Press-Release Style Messages Structured the Way They Are

Why are press-release style messages structured the way they are?

A) to describe the company's unique selling position up front
B) to provide the necessary background first to give context for important details
C) to capture readers' attention with an interesting story about the author
D) to put the most important information first where busy readers can find it
E) to share the opinions and expertise of a corporate leader with the public