Answer:
A "There were once a man and a woman who had long in vain wished for a child." (paragraph 1)
Step-by-step explanation:
Hello. You did not present the text to which the question refers, which makes it impossible for it to be answered. However, according to the context of the response options, we can consider that option A is the one that presents irony most prominently and therefore, it should be considered the correct answer.
Generally speaking, irony is the literary artifice that allows a contradictory statement to be different from what is desired. An example of this can be seen in option A, where we can see that a couple tries to have a child, they know that this effort is in vain, but they refuse to stop trying.