The correct answer that would best complete the given statement above would be third option. <span>The most influential factor in ending the traditional Indian way of life was </span>their constant intertribal warfare. Hope this is the answer that you are looking for.
My best bet would be B. the US and spain both had control over economic trade and stuff.
Biological determinism is a canard that has repeatedly been explained away by evolutionary informed scientists since time immemorial. Humans are an inextricable mix of their genes and their environments. As a matter of fact, genes get turned on or off as a function of environmental inputs. Evolutionary-based cognitive computational systems take information from the environment to get activated. Natural selection itself, the foundational mechanism of evolution, is shaped by the selective forces within a specific environment. Hence, there is no such thing as biological determinism.