13. The model of Silicon Valley – where technology companies, elite universities and venture capitalists have been working in fruitful ___ for decades to create new companies and products – has been copied around the globe.13. The model of Silicon Valley – where technology companies, elite universities and venture capitalists have been working in fruitful ___ for decades to create new companies and products – has been copied around the globe.
(a)sympathy
(b)symmetry
(c)symphony
(d)symbiosis