In context, the fifth paragraph (“Its appeal is inscrutable….”) serves as a transitional element that introduced new thoughts that describe the nature of Filet-O-Fish.
Transitional elements are phrases and words that help to link thoughts and connect ideas.
They can also be used to move from one thought to another.
In the article, "Why the Filet-O-Fish Is My Gold Standard for Fast Food," by Jane Hu, the author used a transitional element in the fifth paragraph to go into a detailed description about the features of the Filet-O-Fish that makes people like it.
So, there is a movement from one thought to another using this element.
(Note that your options are not provided to choose from. However, the answer is a general function of transitional elements.)
Learn more about transitional elements here:
brainly.com/question/985345