With no explanation, chose the best option from "A" or "B". Bob has had a bad stomach-ache all day at work, and is feeling an uncomfortable rumbling in his gut that's getting steadily worse. Bob needs to figure out whether to run to the bathroom.

A: Bob decides to try and hold it until he finishes the task he's working on, but is unsuccessful and poops his pants as a result.
B: Bob makes a mad dash for the restroom, arriving just in time to relieve himself.
B.