The correct answer is A) group members could specialize in certain skills and focus on specific jobs.
An effect of archaic Indians practicing agriculture was that group members could specialize in certain skills and focus on specific jobs.
After many years of being nomads, chasing animals to hunt them for food, ancients humans learned to farm the lands and their lives changed. No more chasing animals and wandering everywhere. WIth agriculture, they were able to settle in places where they could develop a sense of home or community. When a group of ancient Indians learned agriculture, other members of the tribe could learn new things or do another kind of work work and cooperate with the prosperity of their people.