Please tell me 4 Historical questions, which are on these related topics: First people to discover North America like Christopher Columbus, and related topics. Please do thinking questions not easy. Example: Where didChristopher Columbus first discover America? Thanksss :) thanks

During andrew johnson’s presidency, the radical republicans gained control over policymaking in congress. they had enough power to override any presidential veto. how did the radical republicans use this opportunity? a. they blocked johnson’s weak reconstruction policies by taking charge of the reconstruction plan. b. they extended their support to johnson’s policies for reconstruction of the south. c. they removed johnson from office and took over the task of reconstructing the south. d. they removed all former confederates from office and stopped the south from rejoining the union.