In general, yes it is true that increased competition for power among European states and led to imperialism, but first it led to nationalism, which then led to imperialism, since nationalism inspired far more pride.
When there's more research, it helps the development of medical practices because it helps find more cures and causes for diseases. By having more technology, scientists can do more research to find out information to make everyone better.
Nominate and dismiss officials in the presidential cabinet.
I would say B leaders of the american Revolution. Hope this helps
