Pls help i will mark you the brainlest Why did European nations form alliances in the late nineteenth and early twentieth centuries?

Question 28 options:

to build large empires

to keep peace on the continent

to increase their wealth

to start wars

Which statement describes the central idea of the text? a. while the nigerian government has the wealth to improve the conditions in prisons, they continue to view it as a low priority. b. nigerian prisons neglect the physical and mental health of their prisoners by failing to provide them with basic necessities and services. c. the inhuman conditions in nigerian prisons could easily be improved, but the environment is considered part of prisoners' punishment. d. conditions in nigerian prisons are slowly improving as non-government organizations and citizens are providing much-needed equipment to the prisons.