Marginal costs. Keep in mind that marginal means on the edge of something, so the cost of producing one more unit would be on the edge. Hope this explanation helps.
A single-issue party, Good Luck!
Answer:
Having entered the war to support its allies, they believed Russia should maintain its commitment until a final victory was achieved. Others believed that surrender or negotiated peace with Germany would jeopardise Russia's international standing.
It would be C. It gave them the rights to vote for representation in the government.