Under state general member coverage plan 2, the age and service requirements for normal retirement are:
A. age sixty-five years or older and five or more years of credited service;
B. age sixty-four years and eight or more years of credited service;
C. age sixty-three years and eleven or more years of credited service;
D. age sixty-two years and fourteen or more years of credited service;
E. age sixty-one years and seventeen or more years of credited service;
F. age sixty years and twenty or more years of credited service; or
G. any age and twenty-five or more years of credited service.