B.The Tammany Hall bosses tried to bribe him and threatened his life.
Thomas Nast rose to fame in the late 1860s when his satirical comics led directly to the arrest of Boss Tweed, for the corrupted “Tweed Ring” he ran in New York City bribing city officials, rigging elections, and corrupting the judiciary.
Tweed attempted to bribe Nast offering him up to $500,000 to study art in Europe. Failing to bribe Nast, Tweed threatened to have the Board of Elections boycott Harper’s books, where Nast worked, but the magazine´s board chose to support the cartoonist depicting Tweed as a thief.
The united states dropped the worlds first attomic bomb over the city of Hiroshima in Japan and this explosian wiped 90% of the population a dlater killed many around 80,000+ were dead.