Question

conventional wisdom in the tech industry holds that apple long ago lost the pc war to windows—but thats only if you measure winning by market share. in this sentence, conventional means: free from confinement or restraint following accepted customs and proprieties having great material or monetary value not consistent with the methods of science

Explanation:

In the context of "conventional wisdom", "conventional" means common - held, following the generally accepted view. The option "following accepted customs and proprieties" best captures this sense of being in line with what is commonly accepted.

Answer:

B. following accepted customs and proprieties