; and (C) the sum of the hours required of the parents for purposes of meeting the monthly minimum participation rate required for purposes of subsection (a) and meeting the monthly work preparation rate required under this subsection shall not be greater than the hours required for a single head of household for purposes of meeting such rates. (4) Work preparation requirements In order to be considered to be engaging in work preparation for month, an eligible participant shall engage in one or more work preparation activities (as defined in paragraph (5)) for at least an average of 30 hours per week during the month. (5) Work preparation activities defined In this subsection, the term work preparation activity means the following: (A) Work experience (including work associated with the refurbishing of publicly assisted housing) if sufficient private sector employment is not available. (B) On-the-job training. (C) Job readiness assistance. (D) Community service programs (not to exceed the maximum number of hours determined under paragraph (9)). (E) Workfare programs (not to exceed the maximum number of hours determined under paragraph (9)). (F) Vocational educational training (not to exceed 12 months with respect to any individual). (G) Job skills training directly related to employment. (H) Education directly related to employment, in the case of an eligible participant who has not received a high school diploma or a certificate of high school equivalency. (I) Satisfactory attendance at secondary school or in a course of study leading to a certificate of general equivalence, in the case of an eligible participant who has not completed secondary school or received such a certificate. (J) The provision of child care services to an individual who is participating in a community service program. (K) Supervised job search (as defined in paragraph (7)). (6) Priority for community service At least 20 percent of the eligible participants who are required to participate in work preparation for a month shall participate