premise: "The Delivery" is a two-part episode of the sixth season of the U.S. comedy series "The Office". Since it is an hour-long episode, it is considered to be the 17th and 18th episodes in the season's episode count. It is the 117th and 118th episode overall.
hypothesis: The Office had an episode 100.
reason: Reason:  100 comes before 117/118.  Why: Number never mentioned in original context