In the 1880's, how were various European nations able to begin expanding into Africa and eventually gain control over most of the continent?

Africans lacked tribal unity

Europeans had better technology

the development of quinine helped fight African diseases

all of the above

all of the above

Explanation:

In the 1880s, there were various European nations that can begin expanding into Africa and eventually gain control over most of the continent. The Europeans were able to infiltrate based on the following reasons:

1. Africans lacked tribal unity

2. Europeans had better technology

3. the development of quinine helped fight African diseases

Hence, in this case, the correct answer from.the available options is "ALL OF THE ABOVE"

the correct answer is:   the domino theory states that if one country in a region came under the influence of communism, then the surrounding countries would follow in a domino effect.