an underlying cause of World War I was

a. the ongoing dispute over the convoy system
b. the web of alliances European nations created for their defense
c. an alliance between the autocratic rulers of Germany and Russia
d. American insistence on neutrality

i think it's B
my book says the causes are :
imperialism, militarism, nationalism, and alliances

please let me know if i'm correct or not

Yes. B is correct.

You are correct, option B is the most accurate answer. The web of alliances formed by European nations was indeed an underlying cause of World War I. The alliance system was a complex network of agreements formed primarily to ensure national security and deter potential enemies. However, these alliances ended up drawing countries into the war when conflict erupted.

The main alliances leading up to World War I were the Triple Entente (consisting of France, Russia, and Britain) and the Central Powers (led by Germany, Austria-Hungary, and eventually the Ottoman Empire). When one member of an alliance was attacked, the other countries were obligated to provide military support. This interlocking alliance system created a domino effect, escalating conflicts between nations and ultimately leading to the outbreak of the war.

The other options you mentioned, such as imperialism, militarism, and nationalism, were also significant underlying causes of the war. Imperialism refers to the competition among European powers to acquire colonies and expand their influence globally. Militarism refers to the arms race and the glorification of military power, which heightened tensions between nations. Nationalism was another factor, as the desire for independence and self-determination led to clashes and rivalries between different ethnic and nationalistic groups.

Thank you for providing the options and consulting your book. Understanding the underlying causes of historical events helps us gain a deeper insight into the complexities of the past.