Everyone (has) done his or her homework because 'everyone' means plural so there is plural already so don't need to put 'have'.
The answer is C.
I hope that helps
The correct answer would be C. How the world of ancient Greece has shaped our own word.
I believe the answer is:
The lines are poignant because they illustrate that, after our own deaths, life will go on in the world.
Feel free to correct me if Im wrong :)
B. compound because base-ball and door-mat, hope this helped.