Answer:
he feels like people who are more primitive are way stronger than the weak ones.
Explanation:
Efficient means someone who is working in a well-organized way and plans things well. So think of what a character would do being "well-organized" "well-planned" ...etc.
Well I think “collection sources” would be correct
The answer is D given that both arguements account for a large mass in the center of the swirling gas :)