Which of the Following Are True for Alpha Particles? I)

Which of the following are true for alpha particles? I) α particles are equivalent to 2 + 2 .
II) α decay decreases the atomic number by four.
III) α particles are deflected more strongly than e- by magnetic fields, but in the opposite direction.
IV) α particles are easily stopped as they strike matter.

A) I and II
B) I, II, III
C) I and III
D) I and IV
E) I, II, III, and IV