SSC CHSL (10+2) Tier I final answer key. Staff Selection Commission (SSC) announced the final answer key Combined Higher Secondary Level (10+2) Exam 2020 for the recruitment of Lower Divisional Clerk (LDC)/ Junior Secretariat Assistant (JSA), Postal Assistant/ Sorting Assistant, Data Entry Operator (DEO) vacancies. Posts: 4726 Important Links : Tier I Final Key &