The correct answer is: D: The Manhattan Project refers to the secret plan to build an atomic bomb. It was the project that produced the first nuclear weapon during the World War II, and it was led by the United States of America with the support by Canada and United Kingdom. The first bomb was designed in Los Alamos National Labaratory. The project was active between 1942 and 1946. It resulted in two types of atomic bombs being developed: simple gun-type fission weapon with uranium and a more complex plutonium <span>implosion-type weapon.</span>
Answer:
Equal opportunity
Explanation:
Social equality in democracy means all the people within society have equal rights, freedom of speech, expression, right to legal aid, education and have equal access to all goods services. Thus all of them are laid down in constitution.
The main issue that caused concern between the federal and state governments in the 1800s was Control over slavery.
<h3>Why was this the main issue?</h3>
In the 1800s, the issue of slavery was very contentious with the federal government being controlled at different times by pro and anti slavery politicians.
They therefore came into conflict with states on the issue of slavery with this eventually culminating into civil war.
In conclusion, option C is correct.
Find out more on federal v. state issues at brainly.com/question/5496965.
