I believe it's A.) A means of communication. It depends on what you're using it for in a sentence. Hope this helps! :))
She knew the land very well and she knew how to interact with other Indian tribes and if she wasn't with them, they could've been killed possibly by other Indian tribes because the white man was looked down upon by them because they had forced them out of their lands before
Marie curie - discovered new elements
Louis Pasteur- created vaccines
Gregor Mendel- discovered heredity
Joseph lister - proved the importance of sterilizing medical equipment
George Washington carver- pioneered new agricultural techniques
I would say its "C"
Hope im correct and helped plz mark ad brainpist it would mean alot
