"bacon's rebellion" was mainly caused by:
a: fhe treatment of slaves by rich landowners
b: oglethorpe's treatment of indians in georgia
c: conflicts between spainish and english colonists on the goergia frontier
d: economic hardship and distrust of virginia colonists who were unable to acquire land

D)economic hardship and distrust of Virginia colonists who were unable to acquire land.  

Explanation:

"Bacon’s Rebellion" of 1676 is generally considered to be the first major uprising in English North America. It was caused by less-than-wealthy colonists and the economic hardship and distrust of Virginia colonists who were unable to acquire land.

answer; ///i believe that the correct answer is refrigerants,(like r12) and aerosol

i think it was   tsar alexander ii