(1) For a class A felony, a term of years not less than ten years and not to exceed thirty years, or life imprisonment; (2) For a class B felony, a term of years not less than five years and not to exceed fifteen years; (3) For a class C felony, a term of years not less than three years and not to exceed ten years; (4) For a class D felony, a term of years not to exceed seven years;