Final answer:
The result of Kerensky's decision to continue WWI was that the military remained unsuccessful, contributing to the unpopularity of the Provisional Government and setting the stage for the Bolshevik Revolution. Therefore, the correct option is D) The military was still unsuccessful.
Step-by-step explanation:
One result of Alexander Kerensky's commitment to continue Russia's participation in World War I was that the military was still unsuccessful. Despite Kerensky's efforts, his decision to keep Russia in the war was widely unpopular amongst the disillusioned Russian public, who were suffering due to the ongoing conflict. This unpopularity was a factor contributing to the overall decline of support for the Provisional Government, ultimately leading to the Bolshevik Revolution, driven by the promise of peace, land, and bread. As such, the correct answer to the question is D) The military was still unsuccessful.