Section 72 - Power of the board of supervisors to assume responsibility for assistance and care1. The board of supervisors of the county may, by resolution adopted by a majority vote, direct that the cost of all or any part of the assistance and care for which the towns and cities are made responsible under the provisions of subdivisions one and two of section sixty-nine shall be a charge on the county social services district and administered under the direction of the county commissioner.2. Copies of any such resolution shall be sent to each town clerk and to the mayor and clerk of each city in the county social services district within ten days after the adoption of the resolution. However, no resolution adopted by the board of supervisors pursuant to subdivision one of this section shall take effect in a city in the county social services district until confirmed by the legislative body of the city.