123. Degler does more than merely summarizing existing research; he constructs a coherent picture of two centuries of studies dealing with the changing roles of women. (A) Degler does more than merely summarizing (B) Degler’s study is more than a mere summarizing of (C) Degler has done more than a mere summarizing of (D) Degler’s study has done more than summarize merely (E) Degler does more than merely summarize