B. Cultural practiced of language and religion changed.
Assuming this is in regards to the Aryans and the Indus Valley civilizations. Aryans introduced early Hindu ideas and writings, as well as developed the earliest forms of Sanskrit.
During his military campaigns in Florida, Andrew Jackson upset many people by "<span>fighting alongside the Seminoles" since many people believed they couldn't be trusted. </span>
A possible danger the gusher presented was crude oil.