Humans form communities mainly to meet the needs of both individuals and groups, providing support, safety, and a sense of belonging. This also helps in preserving language and culture, as well as fostering social interactions and cooperation. Thus, the best choice is B. To meet the needs of groups and individuals.
;
Humans primarily form communities to meet their individual and group needs, providing support, safety, and a sense of belonging. They also help preserve language and culture and foster social interaction. Ultimately, the need for cooperation and mutual aid is central to community formation. ;