Which of these lines best explains the central irony in "The Pardoner's Prologue"
A. "By this fraud have I won me, year by year, / A hundred marks, since I've been pardoner."
B. "When they are dead, for all I think thereon / Their souls may well black-berrying have gone!"
C. "For, when I dare not otherwise debate, / Then do I sharpen well my tongue and sting / The
man in sermons, and upon him fling / My lying defamations"
D. "Thus can I preach against that self-same vice / Which I indulge, and that is avarice."