The answer to the question is most probably C is not 100% sure tho
Answer:
to yank peoples chain
Explanation:
Crop Circles” is a name coined by Colin Andrews for the unusual geometric formations that have been discovered in various crops since the 1960’s, although there is some historic evidence via woodcuts and the like that dates them back to the 1600’s. Most researchers agree that the modern crop circle sensation began in 1966 with the Tully event in Australia, when a farmer named George Pedley heard a sound and saw a UFO rising from a swamp. He then found a circle of pressed reeds that was photographed and documented. Subsequently, other circles started to be discovered. Throughout the 1960’s and 70’s the formations consisted of mainly circles and rings.
1, In this map all state's names are redacted and rewritten.
As you can see, the name of the state in the map are crossed and rewritten with a name that would not be familiar if mentioned to local citizens of united states. This indicates that other people beside citizens of united states were using this map.
2. The common thing is that All of the states now have Irish names.
Now we know that this map is created for Irish readers not local citizens. As you can see, name such as o'toole , Mulligan, and shaughnessy that are used to replace the name of the state is a very common family name for people in Ireland.
3. it helped the irish immigrants that saw it because it is easier for them to read and appealing to the immigrant eye
This map was created during the great famine era. At that period of time, people in ireland experienced massive hunger problem due to various factors such as war, inflation, and crop failure. This make many irish people decided to find better opportunities in united states.