In Jeremiah 31:31-33, God announces through the prophet Jeremiah that He will make a New Covenant with the house of Israel and the house of Judah. Unlike the old covenant written on tablets of stone (the Mosaic Law given at Sinai), this New Covenant would be different in a fundamental way: God declared, "I will put my law in their minds and write it on their hearts."
The significance of writing the covenant on the hearts of people is that obedience to God would no longer depend solely on an external set of rules inscribed on stone or scrolls. Instead, God's law would become an internal reality, shaping people's desires, thoughts, and will from within. This inward transformation means that the knowledge of God and the motivation to follow Him would be personal and direct.
The other options do not match the biblical text. God did not promise to write the New Covenant on pages of a holy book, on stones, or on labels. While the old covenant was indeed written on stone tablets, the whole point of Jeremiah's prophecy is the contrast: the New Covenant moves from external stone to internal hearts.
Examination tip: When questions reference the New Covenant in Jeremiah, remember the key contrast: Old Covenant = stone tablets (external), New Covenant = hearts of people (internal).