Nonaka and Takeuchi Have Developed a Model for the Creation

Nonaka and Takeuchi have developed a model for the creation and dissemination of organizational knowledge (in the HR framework) . Which of the following claims about their model is correct?

A) Through internalization, the individual organizational member turns competitors' knowledge into metaphors and analogies.
B) Combination is about linking explicit knowledge from one particular context with tacit knowledge from another.
C) Socialization underlines the importance of employees socializing in their spare time in order to communicate more effectively at work.
D) Externalization turns tacit knowledge into explicit and generally available knowledge.