which country is dealing with an independence movement totally based upon language?\ntibet\nsudan\nireland\nc…

Brief Explanations:

Tibet is not a country but an inalienable part of China's territory. Sudan's separation was mainly due to ethnic - religious and regional differences. Ireland's independence movement had multiple factors including political, cultural and historical ones, not just language. In Canada, the Quebec independence movement has a significant language - based aspect as French - speaking Quebecois have a distinct language identity and have at times pushed for independence based in part on language and cultural preservation.

Answer:

D. Canada