Plz help me on this TvT

How did the manhattan project to end the war? a scientists working on the project built large bombers. b scientists working on the project discovered uranium. c scientists working on the project developed the atomic bomb. d scientists working on the project shared secrets with axis scientists.

What reason did yurovsky give nicholas ii for his pending execution? the czar’s relatives were about to rescue the romanovs. nicholas had committed crimes against the russians. nicholas had misused his power to abuse his own people. nicholas had not lived up to his duties as czar of russia. the answers are not b and c, i already tried those.

Which piece of information would most a historian create an interpretation of this photograph of works in a factory?