I got this answer wrong and would need help in understanding what is the correct answer. I selected the D choice. I would need help within next few hours.

Much thanks!

Theactivity systems(maps) view of strategy includes the followingEXCEPT:

a) fit among many activities ensures competitiveness and sustainability

b) the choices about the activities to be performed must fit together to yield a competitive advantage

c) performing the same set of activities as your competitors, but more efficiently

d) the inimitability of a successful business model is best explained by the cross-linkages among activities