The answer I believe is B !
Concurrent powers are powers shared by the State and the federal government.
The main building was burned by the British in 1814 during the War of 1812. Afterward, when the building was being restored, the smoke-stained gray stone walls were painted white. The name “White House<span>,” however, was not used officially until President Theodore Roosevelt had it engraved on his stationery in 1901</span>