Correct Option: B

formal (Adjective) : being according to established forms and requirements (eg. of formal dress, speech, writing, behaviour etc.)
ceremonial (Adjective) : relating to a ceremony that includes formal and traditional actions
religious (Adjective) : relating to religion or spiritual things
official (Adjective) : relating to the job of somebody who is in a position of authority
pompous (Adjective) : showing that you think you are more important than other people, especially by using long and formal words