Dalton's Atomic Theory Is Based on Several Assumptions,which Are Listed

Multiple Choice

Dalton's atomic theory is based on several assumptions,which are listed below.Which of these assumptions is strictly correct?
I.All atoms of the same element are identical.
II.Atoms are indivisible and unchangeable.
III.Chemical changes are the result of the combination,separation,and rearrangement of atoms.

A) I,II,and III are correct.
B) I and III are correct.
C) II and III are correct.
D) I and II are correct.
E) III is correct.