After Hunter drank a glass of milk, sugar levels in his blood increased. This stimulated the hormone insulin to be released. Insulin helped the sugar move from his blood into cells, so his blood sugar levels decreased.

Which statement explains what happened next?

Positive feedback caused his pancreas to stop secreting insulin.
Negative feedback caused his pancreas to stop secreting insulin.
Negative feedback caused his pancreas to produce more insulin.
Positive feedback caused his pancreas to produce more insulin.