Which points shown are the fixed points of the liquid-in-glass thermometer?
- Athe beginning and end points of the column of liquid
- Bthe points marked $-10^{\circ}\text{C}$ and $110^{\circ}\text{C}$
- Cthe points marked $0^{\circ}\text{C}$ and $100^{\circ}\text{C}$
- Dthe top and bottom points of the thermometer bulb