I think its A.
Sorry if it isn't.
Answer:
by diseases of mosquitos and sickness like chicken pocks
Explanation:
bevause of mosquitos a lot of people died of malaria and for chicken pocks they didn't have a medicine for it and many people died for this.
Society come to existence by males and females getting together.
The answer is neurotic trend of "moving toward people".
There are three principle neurotic trends as depicted by Karen Homey, which develop from a people system of engaging nervousness.The trends are:
Moving Toward People
Moving Against People
Moving Away From People
He thought he had found India (hence calling the natives Indians not Native Americans)