If a Defendant Pleads Guilty to an Offense and Wishes

If a defendant pleads guilty to an offense and wishes to later appeal the case on grounds of police misconduct, what results?

A) After pleading guilty, a defendant cannot appeal on grounds of police misconduct.
B) After pleading guilty, a defendant can appeal on grounds of police misconduct.
C) After pleading guilty, a defendant cannot appeal on grounds of police misconduct without prosecutorial permission to do so.
D) After pleading guilty, a defendant cannot appeal on grounds of police misconduct absent permission of law enforcement.