ANS:A - 0°F

The answer "0°F" is incorrect for the triple point of water. In the Fahrenheit scale, 0°F represents the freezing point of a saturated salt solution (a mixture of ice and water), which was historically used as a reference point for the Fahrenheit scale. However, it does not correspond to the triple point of water. The triple point of water is a specific temperature and pressure at which all three phases of water (solid, liquid, and vapor) coexist in equilibrium. It occurs at precisely 0.01°C or 32.018°F. Therefore, 0°F does not represent the triple point of water; rather, it is a reference point for the freezing point of a saturated salt solution in the Fahrenheit scale.