What is the freezing point of water in degrees Fahrenheit?

• A.                  \[\text{30  }\!\!{}^\circ\!\!\text{ F}\]                                                    
• B.                 \[\text{100  }\!\!{}^\circ\!\!\text{ F}\]                   
• C.                         \[\text{212  }\!\!{}^\circ\!\!\text{ F}\]                  
• D.                                         \[\text{32  }\!\!{}^\circ\!\!\text{ F}\]