The correct option is B Arvind Saxena
Arvind Saxena, a 1978-batch Indian Postal Service officer, has been appointed as the acting Chairman of the Union Public Service Commission (UPSC). He will succeed Vinay Mittal, who completes his term on June 19. Saxena will perform the duties of the post of UPSC Chairman with effect from June 20 till further orders or till completion of his tenure on August 7, 2020.