Which statement describes a major drawback of the Bohr model that caused scientists to replace it?

The Bohr model pictured electrons moving in fixed orbits with definite positions and paths. That conflicts with the Heisenberg uncertainty principle, which says an electron’s exact position and momentum cannot both be known at the same time. So C, “It contradicted the Heisenberg uncertainty principle,” describes a major drawback. The model was most successful for hydrogen, not helium and larger atoms, so D reverses its limitation.

AI-written and checked against the verified answer.