When You're Closing a Message About an Error That Your

When you're closing a message about an error that your company made,explaining the steps being taken to avoid similar mistakes in the future

A) is a bad idea,since it distracts attention from the main idea.
B) is helpful,even when those steps are not likely to make a difference.
C) should always be avoided since it acknowledges guilt.
D) can underscore the sincerity of an apology.
E) will usually result in skepticism among your peers.