Special operations personnel shall receive theoretical training and practical training on safety technology corresponding to their special operations. Graduates who have obtained vocational high schools, technical schools or technical secondary schools or above are engaged in special operations corresponding to their majors. With the approval of the examination and certification authority, it can be exempted from the training of related majors. Special operators who work across provinces, autonomous regions and municipalities directly under the Central Government may attend training at their domicile or place of employment. So you should choose option d in this question.