B.
Identify one alternative to purchasing individual bonds to gain credit exposure
while managing liquidity risk in a rapidly changing market.
Answers：
Active managers might consider liquid alternatives to individual bond trades to react
quickly to rapidly changing markets. Alternatives to individual bonds include CDS and
bond ETFs.
请问除了答案中给的CDS和bond ETF，还有其他的derivatives可以算对吗？比如purchase bond futures或者是enter into interest rate swaps为什么不可以呢？
