Communication was very important because back than they didn't have phones and T.V.s so they had to let people know of the danger soon
The answer is probably Voter, seeing as it is kind of..obvious.
Opinion of what?? This asks Q but there are no options just Q
C) A questionnaire is the most common way of collecting answers from a possible employee, or of someone being inter viewed!
Hope this helped!
:D
The U.S. in 1846 was not justified in going to war with Mexico, they didn't have justification to respond with violence.