Rutherford's $\alpha$-particle scattering experiment showed that:
$(i)$ electrons have negative charge
$(ii)$ the mass and positive charge of the atom is concentrated in the nucleus
$(iii)$ neutron exists in the nucleus
$(iv)$ most of the space in the atom is empty
Which of the above statements are correct?

• A
  $(i)$ and $(iii)$
• B
  $(iii)$ and $(iv)$
• C
  $(i)$ and $(iv)$
• D
  $(ii)$ and $(iv)$