These are homophones, words which sound identical but have different meaning.
C. Only Odysseus would know the secret about the bed.
Odysseus, Penelope and the maid are the only ones who know that the bed cannot be moved because it is built with an olive tree trunk.
In Shakespeare's Macbeth, the witches show Macbeth an apparition which tells him that he will not be defeated until Birnam Wood marches to Dunsinane. Macbeth, upon hearing this, feels relieved as he understands that it is impossible for the trees in the woods to march from one place to another. However, when Macduff and his army are coming to Dunsinane to fight Macbeth, they cut off branches from trees to hide behind them as they march towards Macbeth's castle. Because the army was hiding behind the branches, it looked like the trees were marching from Birnam to Dunsinane. In this manner, the prophecy was fulfilled.
Answer:
A tree fell onto the road and blocked traffic.
The answer is B. "The coffee shop was usually full" and "Today there were many open tables" are both independent clauses joined together with the coordinating conjunction "but" :)