After Italy had agreed to switch sides and help defeat the Entente, they thought they deserved more, being one of the Big Four. Great Britain promised to give them a few of the Slavic countries, but they had other plans to make a large Slavic country known later as Yugoslavia. So, Italy was unhappy because they got cheated by Great Britain.
They brought the slaves there to grow sugar.
The answer is C. Battle of Palmito Ranch because Robert E. Lee, the last land action of the civil was took place at Palmito Ranch near Brownsville.