Final answer:
Jenny's statement is best described as an allusion, as she references the biblical story of Noah's Ark in the context of rising oceans from global warming.
Step-by-step explanation:
The literary term that best describes Jenny's response is allusion. Jenny references the biblical story of Noah's Ark when she talks about building an ark and gathering animals two-by-two in response to the rising oceans caused by global warming. This is an allusion because it refers to a well-known story or idea without directly stating it, thereby expecting the listener or reader to make the connection. Allusions are often used to bring deeper meaning or context to a situation, drawing on the shared knowledge or emotional reaction associated with the original story or idea.