The Reinvention period of e-commerce is as much a sociological phenomenon as it is a technological or business phenomenon.

a) "The transformation era of e-commerce, influenced by both sociology and technology."
b) "A period in e-commerce marked by sociological shifts and technological advancements."
c) "The sociological and business aspects of e-commerce during the Reinvention period."
d) "The impact of sociological factors on the technological and business aspects of e-commerce."