XYZ printing is building a dominant position as the low-cost leader in the 3D printer market. Three resources the firm can draw on to build a sustainable advantage are(1) an efficient supply chains and manufacturing system, (2) internal control systems to minimize cost, and (3) competencies in the R&D of electronic products. This set of competencies will make it harder for later movers to imitate. This is an example of using ________ conditions to build protection in the 3D printing market.
a-causal ambiguity
b-social complex
c-physical uniqueness
d- path dependent