With no explanation, chose the best option from "A" or "B". Aaron is a waiter working at a restaurant and drops a tray full of drinks among the tables. Aaron wants to deal with the mess he created.

A: Aaron grabs a mop, cleans up the water, and picks up the glass, then returns to work.
B: "Aaron places a ""Caution: Wet Floor"" sign near the spilled drinks and broken glass, then goes back to work."
A.