<span>Travelers usually have multiple options for reaching a destination.</span>
The correct answer is c. to discuss plans to build an atomic bomb
The creation of the Atomic bomb was a secret and the world found out about it when it was thrown in Japan. This was not discussed at the Tehran conference.
Wanted strong national government
The increased migration and increased population that the United States saw during (any) era are examples of "<span>c. demographic and environmental changes," since these have to do mainly with population distribution. </span>