The thing which Otto should say to Lucy when he meets with her to discuss her proposal is:
This refers to the middle ground which two or more people agree on as an alternative to an earlier suggestion or demand which was deemed to be unrealistic.
With this in mind, we can see that Otto makes a compromise to Lucy who makes the suggestion that the team should take an afternoon off on the company's expense to celebrate their team achievement.
Read more about compromise here:
https://brainly.com/question/25668660