Answer is: B) The plum pudding model would have to be true as well because it shows that electrons are scattered within an atom.
Rutherford predicted that most of the alpha particles would pass straight through the gold foil.
This was famous Rutherford's Gold Foil Experiment: he bombarded thin foil of gold with positive alpha particles. Rutherford observed the deflection of alpha particles on the photographic film.
Alpha particles are helium atom particles, consist of two protons and two neutrons.
According to Rutherford model of the atom:
1) Atoms have their charge concentrated in a very small nucleus.
2) Major space in an atom is empty.
3) Atoms nucleus is surrounded by negatively charged particles called electrons.
4) An atom is electrically neutral.