Question

The Manhattan Project

A was kept a secret from the entire executive branch except for President Roosevelt and Vice President Truman.
B was a top-secret program in which American scientists developed an atomic bomb.
was operated jointly by the United States and the Soviet Union.
never produced an atomic bomb.
E involved the rapid construction of the Pentagon as the new defense headquarters.

Answer 1

The Manhattan Project was a top-secret program in which American scientists developed an atomic bomb.

Step-by-step explanation:

The subject of the question is History.

The Manhattan Project was a top-secret program in which American scientists developed an atomic bomb. It was kept a secret from the entire executive branch except for President Roosevelt and Vice President Truman.

The project did not involve the rapid construction of the Pentagon; rather, it focused on the development and production of nuclear weapons.

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