"I've been washing dishes since I was six years old, when my mother assigned me that task so that she could enjoy her postprandial cigarette in a timely fashion..." What effect does the word “postprandial” have on the sentence above?

A. It makes the writer appear smarter.

B. It makes the writer appear ethical as a researcher.

C. It helps to show the writer from a subservient position.

D. It adds an element of humor to a serious subject.

E. It sets a tone of seriousness.