Which piece best explains an underlying cause of the boston massacre

How did industrial production improvements impact export-dependent areas of the world during the great depression?   a.  demand for certain raw materials rose.      b.  demand for certain raw materials fell.      c.  the new technology was exported to most raw material producing nations.      d.  there was a decrease in tariffs.

What do you think should be the most important factor in president considered when picking a supreme court justice

Which would make the best heading for this list of notes about the migration of african-americans during the reconstruction era?