The correct answer is - D. It was widely agreed that a traditional invasion of Japan would drag the war on for years and lead to may, may more deaths than the atomic bomb.
The US officials decided to use the atomic bombs on Hiroshima and Nagasaki in Japan because of two reasons. The first and more important one was to put an end to the war as quickly and efficiently as possible, minimizing the deaths of their troops as much as possible. The second one was to create an image of a country that reached a level of global military power, in order to boost its global reputation and cause fear at other nations.
Both of those things worked out very fine for the USA. They ended the war with Japan in no time, and they gained a status of a global military powerhouse.
If I see the document I'd be happy to answer your question:)
No they should not, personal blogs aren't very reliable sources.
Askia Muhammad I (ca. 1443 – 1538), born Muhammad Ture or Mohamed Touré in Futa Tooro, later called Askia, also known as Askia the Great, was an emperor, military commander, and political reformer of the Songhai Empire in the late 15th century. He was from the Soninke ethnic group.