The correct answer is Hilkiah.
Josiah was made King of Judah at eighteen. When he ordered the Jerusalem temple to be inspected it was Hilkiah, the chief priest, who discovered the book of the Law of Moses. Judah proclaimed to comply with the principles that indicate the content of this book. That is why from this event began to clean the entire territory under his charge of all the statues and images of the Canaanite idols.