In the second paragraph, "derivatives" most possibly refer toA．instruments that are used b

In the second paragraph, "derivatives" most possibly refer to

A．instruments that are used by Wall Street to regulate the market.

B．subprime mortgage-backed securities and insurance policies.

C．profit-making markets with inherent volatility and deficiencies.

D．financial products which potentially can cause chaos.

请帮忙给出正确答案和分析，谢谢！