With Respect to Generational Differences at Work

With respect to generational differences at work,

A) research shows clear differences in personality, job performance, and employee outcomes among Baby-Boomers, Generation X, and Millenials.
B) experience of certain events (e.g., a corporate merger) or holding certain roles at particular times may be as important as chronological age cohort.
C) financial benefits result to the company when generational similarity exists within a particular job category.
D) none of these.