Which of the following completes the sentence,'A ______ pulls people with different kinds of expertise from across the organization to participate,eliminating the internal political issues relating to who in the company has primary responsibility for social media'?

A) center of excellence model
B) silo model
C) creative message strategy
D) single solution model
E) social media mix

The center of excellence model is designed to pull people with different kinds of expertise from across the organization to participate in social media, eliminating internal political issues. This model allows different departments to contribute knowledge and skills in a collaborative way, without stepping on each other's toes or worrying about who has primary responsibility for social media.