Which group was not a target for racism in the united states during world war two

What would lead a historian to consider two events to have a relationship of correlation rather than causation?

The christians in jerusalem met in the catacombs for their worship service

Which statement best describes standard oil in the late 1800s? standard oil controlled only a small number of the nation’s oil refineries. standard oil was a single business that operated in a small region. standard oil controlled only the means and methods of oil production. standard oil owned ninety percent of all oil refineries in the united states.