Not sure really really sorry :(
To give people food, jobs and homes.
The general relationship between Gross Domestic Product (GDP) and the Human Development Index (HDI) is that they are usually "tied together", in that when one goes up so does the other. This is because countries with greater wealth usually have populations with greater life expectancies.
Trust
A trust was a group of companies legally bound together.
The answer is going to be B. The native people lacked natural immunities.
The Europeans, having already been exposed to these diseases, had already built up their immune system to the diseases. The native people, on the other hand, had not been exposed to these diseases, and thus died because of it.
I hope this helps!