<u>B.) collaboration between Gallaudet and Clerc</u>
Explanation:
Historical sources say that because the Braldwood's refused to share their sign language teaching methods, this led to a collaboration between Thomas Hopkins Gallaudet, an Ameican, and Laurent Clerc, a French man.
This collaboration led to the first permanent school for the deaf to be opened in the United States.
If you walk outside your door and look up you'll see that the sky is what's up. It made me put more than "the sky." But there ya go. That is what's up.
