Based on the context what is the meaning of “sleights”

What effect is achieved by the author telling us that burr set out to "seduce" nolan? a) it causes the reader to see burr in a sinister light. b) it puts a positive spin on burr's actions and character. c) it creates in the reader a sense that nolan will be changed for the better. d) it makes burr seem slightly less heroic, despite his general valorous qualities.