Which civilization's writing has never been decoded? egyptian harappan sumerian babylonian

The civilization's writing that has never been decoded is Harappan. Option B is correct.

Harappan writing has never been deciphered. The Indus Valley Civilization is also called the Harappan Civilization. Nowadays, the village of Harappa extends less than 1 km from the ancient site. Even though modern Harappa has a legacy railway station from the period of the British Raj, it is a small crossroads town of 15,000 people today.

The Indus script, also refered to as the Harappan script, is a corpus of symbols produced by the Indus Valley Civilisation during the Kot Diji and Mature Harappan periods between 3500 and 1900 BCE.

disease was the number one killer of native peoples. they had had little exposure to the diseases of europe. this led to some villages being almost completely wiped out and some tribes destroyed.