What is certain, however, is that around 120,000 years ago, at least, the modern Homo sapiens first appeared and lived contemporaneously with the Neanderthal for at least 90,000 years, until the Neanderthal disappeared 30,000 years ago.

Based on that paragraph can we conclude that this sentence is true?
Over the last 120,000 years Neanderthals have disapeared at a consistent rate of decline

Choices: (I). Yes; (II). It's impossible to say; (III). No;