It reinforced segregation and discrimination
I would say b. precious stones Example of commodities that have been used as mediums of exchange include gold, silver, copper, salt, peppercorns, tea, large stones (such as Rai stones), decorated belts, shells, alcohol, cigarettes, cannabis, candy, cocoa beans, cowries and barley.
Justified means if something is right or that it's good or the right thing to do. The quote sounds like it's too much. So I would say no, it's not justified.
The accurate statements are a) The English people split into two factions known as Cavaliers (the king's supporters), and Roundheads (Parliament's Puritan supporters), c)Oliver Cromwell led the Roundheads into battles and became the lord protector after the Civil War and e)After executing the king, Parliament established a republic. The period of the republic became known as the Protectorate.