Answer: E
Explanation: A) "news" is singular so "were" should be singular, i.e. "was"
B) redundant, unnecessary
C) plural/singular subject/verb concordance
D) "in order" is wordy, redundant and unnecessary. "in addition" is used improperly. Although this does have the correct structure of the idiomatic "in addition to", it is used incorrectly. "in addition to" should begin a phrase/complete thought; should start a sentence, right after conjunction or comma.
E) active tense, bypassing plural/singular agreement problem; this is tricky! Correct, concise sentence. If you have issues with modifier "by swift messenger", this is modifying "four days". e.g. the mail took four days by post to arrive. "by post" lets us know what type of mailing method took four days.