What is the major difference between the Bohr model and the currently accepted atomic model?

Bohr assumed that electrons have very little mass.

Bohr assumed that the nucleus was positive.

Bohr assumed that electrons move in fixed orbits.

Bohr assumed that electrons could be found within an electron cloud.

The major difference between the Bohr model and the currently accepted atomic model is that the Bohr model assumed that electrons move in fixed orbits around the nucleus, similar to planets orbiting the sun. In the currently accepted atomic model, electrons are instead thought to exist in a probability cloud or an electron cloud, rather than having specific fixed orbits. This means that the exact location of an electron within this electron cloud is uncertain, and it is described by a probability distribution rather than a specific path.

so is it a b c or d

The major difference between the Bohr model and the currently accepted atomic model is described in option C: "Bohr assumed that electrons move in fixed orbits." This assumption is not present in the currently accepted atomic model, where electrons are described as existing in an electron cloud with a probability distribution of their location.