The direct consequence of Austria-Hungary declaring war on Serbia was that Russia mobilized its troups as it was in good relations with Serbia at the time (and still is today). It did this as it knew what was about to happen and that large-scale war was basically inevitable.
The correct answer to the question is Option D) They could buy stocks "on the margin," so they needed less initial capital.
A lot of people invested in the stock market in the 1920s because they could buy stocks 'on the margin', and hence, required little initial capital.
'Buying on margin' means that you leverage an asset by borrowing money from a lender. This easy access to borrowing, fueled a growth in stock market investment, which eventually created a bubble and completely collapsed.
All this resulted in the worst US economic depression in recent history and the event is ingrained in the US socioeconomic history.
Answer: Arabic will be one of the leading languages in the USA so if you learn it now it will be beneficial in the future.
