Which of the following best describes the tone of the introduction to the 1950 Edition? A Somber and retaliatory
B. Passionate and eager
C. Informal and arrogant
D. Earnest and humble

Can someone me answer this english question

Understand that amassed in paragraph 3 means

How is president obama using an appeal to reason, or logos, in this excerpt? by explaining why each person must work hard in order to succeed by explaining why working together is necessary for success by explaining why attempts at working together in the past failed by explaining why each person must look out for him or her self