The correct answer to this open question is the following.
Insurance is a financial service that offers a kind of protection in the event of unforeseen damage, injury, or loss.
A premium is the cost of a type of insurance that is paid at a regular interval.
A copayment is a money a consumer must pay to share the costs of a payout.
When we talk about financial services, insurance helps people to share liability with the insurance company. That is why the client buys insurance, to diminish or mitigate the risk in the case of an event. For that to happen, the client has to pay for the premium, that is the kind if the insurance that is going to protect the client and be valid in the case of an event. When the client uses the insurance, it has to make a copayment that shares the costs of the payout.
The events of September 11, 2001 were heavily financed by Osama bin Laden as he was the head of the terroristic organization known as Al Quaeda, an importnat terroristic organization known at the time. He also took responsibility for the attacks later on.
B. Harmed because they brought deadly diseases
The answer is D because they fought against the United States and Western Europe alliance NATO .