I think you mean the Golden Spike which is the ceremonial final spike driven by Leland Stanford to join the rails of the First Transcontinental Railroad across the US connecting the Central Pacific and Union Pacific railroads in 1869 in Promontory, Utah.
Yea the correct answer here definitely is D.
If Germany had won the War the British Empire would have surely crumbled. They would either had to accept less then favorable terms of defeat like Germany did in the World War I or even force they would become occupied by the Nazi German forces and the British would had to live under the German boot.
Answer: A new sports car would be an example of something new, clean and cool.
Explanation: hope this helped :)
Answer/Explanation
The US sought to defend its eastern border from attack and drive Spain from power in the Americas.