From this article, we may draw the conclusion that______A．The focus on the bird is an impo

From this article, we may draw the conclusion that______

A．The focus on the bird is an important yet missing characteristic, and without it even the successful discovery will seem hollow.

B．It is not the bird but the human efforts that attract a lot of readers' attention.

C．The article argues that the book is with great content and great focus.

D．Although the book is not stylish, readers still find interesting things in its characterization and extended history of the bird.