It might have been the night of broken glass, you don't say what year but thats probably what your asking about.
Rising action, I’m pretty sure
You did not provide the lines, however, imagery is often used when the writer wants to create a visual image in the minds of his/her reader. It usually consists of numerous descriptions that are often vivid and colorful and highly detailed. You can use that logic on the lines that you might have and see what the correct answer is.
In the fourth episode, the Servant actually eagerly answers to Oedipus's questioning about his heritage - that he was abandoned by his parents and that he is that same baby he had been asking around about.