ANSWER: California
Explanation:
California on 5 October 2015 permitted terminally ill patients to legally end their lives under a doctor’s supervision. State governor Jerry Brown signed the Right to Die bill into law. California is now the 5th state in the US to give terminally ill patients the right to end their lives legally. Four other US states that allow such assisted suicides to terminally ill people are Oregon, Washington, Vermont and Montana. Right to Die Bill was introduced in 2007.