Hitachi is a Japanese multinational electronics company that often deploys Japanese staffing operations in its overseas subsidiaries $($e$.$g$.,$ Vietram, India, and Thailand$).$ They believe that employing these practices can address the lack of competency issue while maintaining the need for corporate communication. This is an example of:

a$.$ Geocentric Approach

b$.$ Regiocentric Approach

c$.$ Polycentric Approach

d$.$ Ethnocentric Approach