In a particular organization it is common practice to call all managers by their first name. It is part of the culture o

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In a particular organization it is common practice to call all managers by their first name. It is part of the culture of the organization. Newcomers are quickly corrected if they do not follow this informal approach. What would knowing about this convention be classified as in Requirements Engineering?

A. Explicit individual knowledge.
B. Tacit individual knowledge.
C. Explicit corporate knowledge.
D. Tacit corporate knowledge.