Identify the figurative language technique used in this example. what is the purpose? my great grandmother is so old that she actually taught the cavemen how to make fire. question 4 options: the writer uses hyperbole to offer a lighthearted joke about the age of the grandmother. the writer uses a simile to compare the grandmother to cavemen. the writer uses an idiom to create a connection with the people in his culture. the writer uses personification to show she is older than fire.