Answer:
it choked off southern commercial activity.
Explanation:
Answer: "a person who studies human history and prehistory through the excavation of sites and the analysis of artifacts and other physical remains."
The most obvious difference is in the two groups' names. The YAF appears to show much nationalism, while the SDS suggests to us that it is Democratic. The similarity about these two groups are that they both are run by young people, as their names start with "Student" and "Young."
if you could show all of it i could help