Which of the Following Postulates of Dalton's Atomic Theory Is/are

Which of the following postulates of Dalton's atomic theory is/are still valid today?
(I) Matter consists of particles called atoms.
(II) Atoms are indestructible and indivisible.
(III) All atoms of an element are identical.
(IV) Atoms of different elements differ in mass.
(V) When the atoms of different elements combine to form compounds they combine in simple whole number ratios.

A) All of these statements are still valid today.
B) I and II are still valid, but not III, IV and V.
C) I, II and III are still valid, but not IV and V.
D) I, IV and V are still valid, but not II and III.
E) II and III are still valid, but not I, IV and V.