单项选择题

Pasley considers this view oversimplified, because neutrality was not a goal of early national newspaper editing, even when editors disingenuously stated that they aimed to tell all sides of a story. In the context in which it appears, "disingenuously" most nearly means

A. insincerely.
B. guilelessly.
C. obliquely.
D. resolutely.
E. pertinaciously.