Final answer:
The answer to the question is 'd) Cheek', which signifies impudence or sass. Sass represents a complex interplay between overt and subtle forms of expression, as seen in literature and cultural practices.
Step-by-step explanation:
The part of the face that can mean "impudence" or "sass" is d) Cheek. This term can refer to a sort of boldness or disrespect, which is often conveyed through someone's manner or speech. In various cultural expressions, such as literature and poetry, sass can be a form of resistance or a means to disguise true feelings. For example, the notion of sass is explored in relation to masks, as in Paul Lawrence Dunbar's poem "We wear the Mask," where the speaker's mouth might reveal subtle hints of truth through a mask of deception. In Wheatley's poetic works, the employment of certain markers serves to present a veiled, coded form of expression, not overtly impudent but subtly assertive.