Choose the word(s) OPPOSITE in meaning to the underlined word(s): Public service announcement is a special advertisement for the community, norma

Question:

Choose the word(s) OPPOSITE in meaning to the underlined word(s): Public service announcement is a special advertisement for the community, normally about health or safety matters.

• 
  A.
  Open
• 
  B.
  Secret
• 
  C.
  private
• 
  D.
  Popular