Final answer:
The folk hero, often featured as a cunning protagonist in African-American folk tales from the south, is Br'er Rabbit, a trickster character known for his wit.
Step-by-step explanation:
The crafty and cunning folk hero who frequently appears as the protagonist in African-American folk tales of the south is a. Br'er Rabbit. Br'er Rabbit is a trickster character who uses his wits to outsmart his opponents, embodying African American storytelling's common trope of the trickster with intellect or secret knowledge. This figure is depicted in Joel Chandler Harris's collection, 'Uncle Remus, His Songs and His Sayings: The Folk-Lore of the Old Plantation' from 1881. The character is derived from traditional African tales and adapted through the lens of the African American experience, often involving clever tactics to overcome adversity or escape tricky situations.