Answer: Right choice:
c. He was committed to states' rights and believed that to save the Union concessions must be made to the South.
Explanation:
President James Buchanan tried to preserve the unity of the Union by different means but he wasn´t succesful in assuaging rising tensions North-South. He tried to prevent anti-slavery agitation in the North. He enforced the Fugitive Slave Act. Southern states began to secede in his last months in office, spurred by the victory of Abraham Lincoln in the 1860 presidential election.
.............The answer is B
Answer: What are a few factors that contributed to the inevitable downfall of the Ottoman Empire.
*or something like that*
Helped determine our distance from the sun and might have an atmosphere, like Earth.