In Business Communications, How Is Ending a Sentence with Prepositions

Multiple Choice

In business communications, how is ending a sentence with prepositions viewed?

A) It is still considered an error by most writing experts and should be avoided, except when the message is considered to be very informal.
B) It is now acceptable if doing so sounds natural and doesn't involve excess words.
C) It is no longer a true grammatical error but should be avoided because it makes writing seem awkward and stilted.
D) It is one of the most serious grammatical errors you can make; ending a sentence with a preposition can be very distracting to the reader.