Answer:
The quotation should be placed before sentence 3 to further develop.
Step-by-step explanation:
We have the paragraph:
1. Asclepius, the Greek god of medicine, was responsible for healing in ancient mythology. 2. His daughter, Hygieia, was the goddess of health and cleanliness. "Health and hygiene are still represented today by the rod of Asclepius, a snake-entwined staff" 3. Tradition states that Asclepius angered Hades, the god of the underworld, by saving others from death. 4. Hades asked Zeus to use his mighty lightning bolt to stop Asclepius.
The quotation is getting together the first two sentences and giving a foundation about the topic to be further developed.