According to the author, which of the following is true of Glarthaar’s Forged in Battle co

mpared with previous studies on the same topic？

A．It is more reliable and presents a more complete picture of the historical events on which it concentrates than do previous studies.

B．It uses more of a particular kind of source material and focuses more closely on a particular aspect of the topic than do previous studies.

C．It contains some unsupported generalizations, but it rightly emphasizes a theme ignored by most previous studies.

D．It surpasses previous studies on the same topic in that it accurately describes conditions often neglected by those studies.

E．It makes skillful use of supporting evidence to illustrate a subtle trend that previous studies have failed to detect.