Answer: B) African countries were not invited nor welcomed to this meeting.
All of the 14 participants of the Berlin Conference were European, with the exception of the Ottoman Empire which, even thou it controlled some territories in northern Africa, they were autonomous territories.
Besides that fact, there was no participation by any African country, since the conference´s goal was to regulate European colonialism and trade throughout Africa.
With the Renaissance, trade and exploration became prevalent. This caused many European nations to try and conquer lands that were then uncharted, leading to the displacement and enslavement of many indigenous populations.
Communicate with other peope
The cause would be rodents carrying the disease and the fleas would bite the human
They were not entitled to freedom in the North, because there was a law stating that if caught, they were sent back to their slave owners in the south.
