Answer:
packaging and lifting grain
Explanation:
"Of Mice and Men" is a famous novel written by John Steinbeck. Two main characters are George and Lennie, farm workers and childhood friends, who dream of buying their own piece of land.
Since they work on the farm, the term "buckin barley" refers to the process of lifting and packaging bags of barley on a truck.
For a further explanation, barley is a cereal grain used for feeding livestock or making beer.
The prefixes are a group of letters or one single letter placed and attached before the root word, and at the same time provides meaning to the complete word. For example "impossible" in this case the prefix would be "im".
Hence, the correct answer is letter <u>c. ex</u>