Respuesta :
Answer: before "this one is about."
This excerpt describes how a suffragette coin is different from other items that had been previously discussed. Its difference lies in the fact that this coin reflects the rise of mass political engagement. If a pause is added for emphasis, it should be added before the sentence that reveals the special quality of the coin, in order to increase people's expectations and build suspense. The sentence that reveals this quality is: "this one is about the rise of mass political engagement." Therefore, the pause needs to be placed before that sentence.