ANSWER
<em>Russia</em>
HERES HOW:
<em>On March 30, 1867, the United States reached an agreement to purchase Alaska from Russia for a price of $7.2 million. The Treaty with Russia was negotiated and signed by Secretary of State William Seward and Russian Minister to the United States Edouard de Stoeckl.</em>
<em>I DIDN'T WRIGHT THIS SO THIS IS NOT MINE BUT READ THIS IT SHOULD HELP :)</em>
The answer you are looking for is D.) articles that exaggerated or manipulated events to shock readers.
For example lets say there was a car crash and the people had minor injuries in your town. Later you see on the morning paper that the people suffered terribly from the crash that they had to be flown to a hospital. That is yellow journalism because the event is exaggerated.
Also called "H-bomb" or "fusion bomb", the hydrogen bomb is the most powerful explosive invented by man. Its force can reach 50 times that of an atomic bomb like those that were dropped on Japan and the reaction is the same that occurs spontaneously inside stars like the sun.
In contrast to what happens in nuclear fission, when heavy uranium atoms "break" releasing large amounts of energy, in nuclear fusion the hydrogen atoms (deuterium and tritium) come together to release energy.
The difference is that while nuclear fission releases about 10% of the energy contained in the nucleus of atoms, fusion can release about 40% of that energy.
