1. c
2. d
3. c?
hope this helps
1000 MI. Long from Chang'an to Dunhuang
B. Emancipation proclamation
"An invasion from Morocco" is the one event among the choices given in the question that <span>marks the final stage in the collapse of the Songhai empire. The correct option among all the options that are given in the question is the last option or the fourth option. I hope the answer has come to your help.</span>
I think there could be many answers. For example Horn of Africa, by sea, or just by trade routes
