The provisions of this code shall be construed in accordance with these general purposes to:
(A) Forbid and prevent the commission of offenses;
(B) Define adequately the conduct and mental state which constitute each offense and safeguard conduct that which without fault from condemnation as criminal;
(C) Prescribe penalties which are proportionate to the seriousness of offenses and which permit recognition of differences in rehabilitation possibilities among individual offenders; and
(D) Prevent arbitrary or oppressive treatment of persons accused or convicted of offenses.