Test center: training and assessment of employees in production and business units.

According to the Measures for the Administration of Safety Production Training, the provincial safety production supervision and management department is responsible for assessing the safety production supervisors of the municipal and county safety production supervision and management departments; Responsible for the assessment of the main responsible persons and safety management personnel of provincial production and business units and branches and subsidiaries of central enterprises and their subordinate units; Responsible for the assessment of special operations personnel. Therefore, the D option is wrong, and the ministries and agencies are responsible. The municipal safety production supervision and management department is responsible for the assessment of the principal responsible persons and safety production management personnel of other production and business operation entities except central enterprises and provincial production and business operation entities within their respective administrative areas. Therefore, this topic chooses option D;