I want to know the answer to the following question:
Bacterial infections could be treated with medicines containing what kind of dye?
All the background I'm provided with is that "Ehrlich, noting both the general toxicity of arsenic and the selective absorption of certain dyes by bacteria, hypothesized that an arsenic-containing dye with similar selective absorption properties could be used to treat bacterial infections.". Is that enough to answer the question?
Answer: yes