In the united states, an estimated people participate in self- support groups. a. 5 million b. 10 million c. 15 million d. 20 million

the answer is D

Approximately 20 million people participate in self help support groups every day.

answer: the apache, comanche, kiowa, crow, and osage tribes are plains indians.  

go up to your profile picture in the top right hand. click on it. then click on edit profile. there you shall see delete account