Which paper are they talking about?

Choose the word or set of words that, when inserted in the sentence, best fits the meaning of the sentence as a whole.

Observing the newspaper’s tradition of ------- attention to accuracy, the reporter ------- every statement made by her informant.

A. scrupulous . . . verified
B. lax . . . challenged
C. sporadic . . . corroborated
D. systematic . . . bungled
E. inordinate . . . exaggerated