Which of the following credit portfolio positioning strategies is the most appropriate to underweight the financial sector versus an index?
选项：
A.
Purchase protection on the CDX and sell protection on the CDX Financials subindex.
B.
Sell protection on the CDX and purchase protection on the CDX Financials subindex.
C.
Purchase a payer option on the CDX and sell protection on the CDX Financials subindex.
这里题干的“underweight the financial sector versus an index”是什么意思呢？不太明白题目意思
