Look at these sources.

encyclopedia britannica
the unit about world war ii in a history textbook
a book written in 1995 about the last two months of the war
a newspaper article from august 1945 about the bombing of hiroshima

a student is writing an argumentative essay taking the stance that truman was right to use the atomic bomb against japan during world war ii. which of the following would be most useful as an additional source for the essay?
a) a book about the entire history of japan
b) the website for the truman library and museum
c) a letter from an american soldier who fought in okinawa
d) a magazine article from august 1945 about the hiroshima bombing

The correct answer is B) the website of the Truman Library and Museum.

The option that would be the most useful as an additional source of the essay would be the website of the Truman Library and Museum.  

That option is useful as an additional source for the essay because the student wants to write an essay taking the stance that Truman was right to use the atomic bomb against Japan. So using the website for the Truman Library and Museum, the student can search for valid information where he can find arguments, data, testimonials that support his line of investigation.

When writing an argumentative essay it is very important to write a solid thesis statement, a sentence that establishes the position the author has about the topic. This statement appears in the introduction.  

this is true hope this