<span>The Incas built temples, forts and roads out of huge stone blocks and were the first to build suspension bridges.
Hope I helped :)</span>
No military action led to the start of WW1; the catalyst to WW1 was the assassination of Franz Ferdinand, the archduke of Austria-Hungary. His murder by Gavrilo Princip – a Serbian nationalist, caused Austria-Hungary to declare war on Serbia, which drew the other European countries into the war due to their existing treaties of mutual defense.
<span>Assuming that this is referring to the same list of options that was posted before with this question, <span>the correct response would be the one having to do with the fact that World War II greatly increased domestic production, which greatly increased the salaries and social standing of many working Americans. </span></span>
The answer is obviously “A”