The correct option is D.
From the passage given above, it can be seen that the author is implying that compulsory voting was implemented in Australian a long time ago and it has has been very successful and that the same method should be used when it comes to voting in America.
Its C Their because their is the only option refering correctly to the sentence. Read the sentence out loud with option C and you will "C" that it is correct lol
The=article
Cricket=noun
Beneath my window=preposition phase
Is singing= helping verb and verb
Me=pronoun
Its=pronoun
Evening song= Adjective phase