People by themselves or associating with others are able to influence by creating an environment for like-minded citizens to gather in recreational groups such as community centers, libraries, parks, or more official local government meetings. Petitions, protests, demonstrations, join interest groups, contract representatives, donations.
The correct answer is C. Voting is a right and a privilege granted to the citizens in a democracy. When the local elections occur, it's the opportunity the citizan has to participate in the political process and express his preference for a representative. Some countries make voting voluntary and in other countries it's compulsory.
A shortage of crops/food would have killed off the soldiers mostly, devastating the southern states. I hope this helped!
Thanks!
~Steve