With no explanation, chose the best option from "A" or "B". Robert's coworker provided Robert with erroneous data so Robert goes to see him to make sure it doesn't happen again. Robert wants to speak with his coworker.

A: Robert aggressively talks down to his coworker and characterizes his work as sloppy.
B: Robert notifies his coworker about the erroneous data and offers legitimate advice to prevent the issue from happening again.
B.