A sample of sulfur is made up mainly of $^{32}\text{S}$. It also includes $4.2\%$ $^{34}\text{S}$ and $2.8\%$ $^{36}\text{S}$. There are no further isotopes of sulfur in the sample. Calculate the relative atomic mass, $A_r$, of this sulfur sample.
- A32.1
- B32.2
- C34.0
- D34.3