Calipers are used to find the wall thickness of a glass tube. These measurements are taken. internal diameter of the tube = $(10.0 \pm 0.1)\,\text{mm}$ external diameter of the tube = $(12.0 \pm 0.1)\,\text{mm}$ What is the wall thickness of the tube?
- A$(1.0 \pm 0.1)\,\text{mm}$
- B$(1.0 \pm 0.2)\,\text{mm}$
- C$(2.0 \pm 0.1)\,\text{mm}$
- D$(2.0 \pm 0.2)\,\text{mm}$