I think B is the appropriate answer among the others. Hope this helps :)
The Persian empire was in existence at the same time as ancient Egypts late period. Hope this helps.
The Germans sank a British ship which had American passengers. This was the first step. After this due to the unrestricted submarine warfare more US ships were sunk by German U-boats.
A job, they left the countryside and migrated to cities and towns for new jobs.
