Which of the following correctly describes the taste and litmus paper reaction of acids and bases?

• A. Acids taste bitter and turn blue litmus paper red; bases taste sour and turn red litmus paper blue.
• B. Acids taste bitter and turn red litmus paper blue; bases taste sour and turn blue litmus paper red.
• C. Acids taste sour and turn red litmus paper blue; bases taste bitter and turn blue litmus paper red.
• D. Acids taste sour and turn blue litmus paper red; bases taste bitter and turn red litmus paper blue.

Answer: (D)