Answer:
a. Plot elements and the themes they express.
Step-by-step explanation:
Despite difference in cultures, many of our folktales, myths, fables, and stories passed from generation to generation seem to have a sort of similarity or parallelism among them. Added to that, all cultures have their distinct and even are geographically located far from each other.
But one thing that literary scholars have found is that despite the difference in cultures and being far apart, myths, fables, folktales etc. of these cultures seem to have a similarity in their tales. These similarities are mainly seen in the way the plot is constructed and the themes that they deal with.
Thus, the correct answer is option a.