I believe that the answer is B
Answer:
B. The desire of European nations to remain isolated, not forging relationships with neighbors.
The correct answer is D) news that a company is about to release a promising product.
<em>The reason that might convince an investor to buy stock or mutual funds is "news that a company is about to release a promising product."</em>
Smart investors are cautious when its time to invest their money but at the same time they are not afraid to invest in a risky scenario when the product seems good and the interest paid is attractive. Smart investors like to diversify its portfolio in order to gain more money from different sources and securing their positions. None of them are going to bet all their money in just one product. So the reason that might convince an investor to buy stock or mutual funds is "news that a company is about to release a promising product."
The major platform of the Republican Party in the 1850s was an antislavery platform. Antislavery leaders opposed the extension of slavery into even more territories. Their opposition of slavery ended up helping them to join forces.
Hope this helps! :)