It revolutionized the maritime industry by allowing faster travel that could now be controlled without being reliant on wind currents. Along with it being faster, you could now transport goods on larger ships through smaller bodies of water like rivers.
For his own sake, no. What he did blatantly put himself in danger and finally was placed under interrogation, etc & so forth.
For the sake of science, yes. What he did, and the consequences thereof, would have publicised his struggle, especially during the age of Enlightenment. Although what he did might also have momentarily pushed people away from science in fear of the consequences of facing the church due to the harsh punishment that he was subjected to. His persistence was, in the end only healthy for the development of science in later years.
When World War I broke out in Europe, the president Woodrow Wilson follow the policy stated in option B. He declared U.S. Neutrality and the right to trade with both sides.
Keeping in mind that, 1 in every 7 Americans were born in some of the countries at war, the president highly believed that his country must remain neutral. Besides that, by the time the WWI began The United States was in an economic recession, so his government couldn't provide any economic support to the war, and instead decided to focus on selling its goods to France and Britain because they were really interested in American products, and that's why the administration disguised neutral duties in ways that tended to favor the Allies.
One positive is it helped the countries against communism by supplying them with weapons. A negative is that the countries against it could have been impostures and used the weapons we gave them against us