Answer:
c) the frequent use of folksy sayings
Step-by-step explanation:
Throughout his brief career as a writer, his approach was always folksy sayings; he even taught this to Mark Twain. The following is a sample of some of his lines:
"Man iz the only kreature that laffs, Angels dont, Animals kant, and Devils wont. Man iz the only kreaure that laffs, Angels dont, Animals kant, and Devils wont."