I believe the answer is D
Eloquence is "Fluent or persuasive speaking or writing"
So it's A) Because it expresses him/her self!
Hope this help :)
lack of thoroughness, depth of character, or serious thought
Out of the choices given, the thing that comes first in an online catalog entry is the author's last name. This is so any person can find the book easily and in alphabetical order. The correct answer is D.