What was the main effect of the event reported in this headline?

The headline was: Atomic Bombs Dropped on Hiroshima and Nagasaki

The question above has multiple choices;

a) The Soviet Union invaded Japan to gain access to natural resources

b) The United States initiated the Marshall Plan to help with the rebuilding of Japan

c) Germany surrendered to the Allies and promised to help in the fight against Japan

d) World War II ended with Japan surrendering to the Allies

lincoln declared that slavery should not be allowed to spread into the new states, and of course this angered the south at the time.

the answer is b your welcome : )