Julie is a new 28-year-old manager at Bowers Envelope Company. Her first job is to give a "safety-first" speech to the press-production crew, most of whom have been with the company for 25 years or more. Other than gender, what is the most crucial demographic characteristic that Julie should consider when preparing her remarks
A. Age
B. Length of tenure with the company
C. Educational background
D. Marital status