It is important for american indians to share the ir heritage

a. they have no wro tren languages.

b. it educatesothersabout americans indians culture

c. there are no americans indians living today

d. they cannot share their food

I believe the answer would be B.  they have written language, there are defiantly still native American's today, and heritage doesn't effect if they can share their food or not

Most Native American language has no written form. Some languages are being threatened of loss because younger NA are not interested in keeping the heritage.
This idea saddens me. Keeping their culture alive helps all of us.

If you have not seen the movie, "The Windwalkers", it is a story of how the Navajo Indians used their language to defeat Hitlers army. Hitler could not break the "code"
And many Americans were saved.