<span>The messenger tells of the tragic events.</span>
Either the 2nd or third one would work because you just want the two sentence to become one and so by putting either a comma or ; there then you could make one sentence clear.
That element of Greek tragedy is called 'hamartia'. It is basically a tragic flaw withing the protagonist which leads to his/her downfall.
The correct answers are options B, C and D.
Marco Polo's cultural context are represented first in the quote about the malik of Homuz who had a castle. <em>Malik </em>means <em>king </em>in Arabic, and the Kingdom of Hormuz existed in the Persian Gulf between the 10th and 17th centuries.
Secondly, the cite about ships which made voyages in twenty days also refers to the cultural framework of Polo's time.
Finally, there is a reference to Saracen people, a term used to mention Muslims in the Middle Ages.
I would say D. No change Nesessary.