A. War with the Etruscans.
Answer:
Belgium's ports were close to the British coast and German control of Belgium would have been seen as a serious threat to Britain. Britain refused to ignore the events of 4 August 1914, when Germany attacked France through Belgium. Within hours, Britain declared war on Germany.
Explanation:
C. Andrew Johnson
Andrew Johnson was the seventeenth president of the US and followed Lincoln after his assassination. He was a Democrat and as vice president offered a good bridge to the South as the Civil War was ending but as president he was not trusted by the Republicans.
Andrew Johnson pardoned Confederate leaders, allowing them to keep their land and sometimes positions in society. He provided an easy path back into the Union and did not protect blacks from the growing power of groups like the Ku Klux Klan. Johnson vetoed a civil rights act that would have prevented segregation and violence against former slaves. His policies would convince Republicans that they would have to take Reconstruction over in Congress.
The answer would be the second option. The price of gasoline had gone done prior to this shift.