A student wants to calibrate a mercury-in-glass thermometer using a ^{\circ}C scale. Which values should she select for the lower fixed point and the upper fixed point?
- Amelting point of ice; boiling point of mercury
- Bmelting point of ice; boiling point of water
- Cmelting point of mercury; boiling point of mercury
- Dmelting point of mercury; boiling point of water