Choose the option that correctly identifies the problem with this outline for a classical essay:

Introduction

A$.$ Thesis statement

II$.$ Main point

A$.$ Supporting detail

Sub$-$point

B$.$ Supporting detail

Sub$-$point

III. Conclusion

A$.$ Supporting detail

N$.$ Main point

A$.$ Supporting detail

Sub$-$point

a$.)$ The structural organization of the essay appears chaotic.

b$.)$ Roman numerals should be used where capital letters are and vice versa.

c$.)$ The thesis statement should be included within the introduction.

d$.)$ The essay does not have enough body paragraphs.