When was the firm foundation of quantum theory laid

A．Quantum mechanics and uncertainty relations do not have obvious relationship.
B．Quantum theory, which contributes greatly to human beings, developed perfectly.
C．Quantum theory changed physics as well as the whole world picture.
D．Uncertainty principle is as great as Einstein’s concept of relativity.

A．supported the Nazi regime
B．wanted to contribute to the German physics
C．was not sympathetic for the Nazi regime
D．wanted to develop a nuclear reactor in Germany