请问，这道题怎么做呢，没有很理解

问题如下：

An analyst at an asset management company is evaluating the credit risk of sovereign bonds issued by several countries. The analyst examines the use of credit ratings provided by rating agencies and credit spreads to assess sovereign credit risk, and considers the use of sovereign CDS to hedge this risk. Which of the following would the analyst find to be correct?

选项：

A.

The bonds issued by two countries that have the same credit rating are highly likely to have the same credit spread.

B.

Sovereign credit ratings and corporate credit ratings adjust more quickly to new information about the borrower's creditworthiness than credit spreads do.

C.

Both the market for a country's bonds and the market for CDS on the country's bonds can be used as sources of data to derive a credit spread for the country.

D.

A sovereign CDS contract provides a payoff to the long position if a default or a credit migration of the reference entity occurs.

解释：

Explanation

C is correct. Both the CDS market and the market for the bonds issued by a country are sources of credit spread data.

A is incorrect. One country with a given rating may have a lower credit spread (and therefore be perceived as less risky) than another country with the same rating, because credit spreads are more granular than credit ratings.

B is incorrect. Credit spreads are able to adjust more quickly to new information than ratings. However, they are also more volatile.

D is incorrect. CDS only provides a payoff to the buyer if the reference entity defaults.

Section

Valuation and Risk Models

Learning Objective Describe the characteristics of sovereign credit spreads and sovereign credit default swaps (CDS) and compare the use of sovereign spreads to credit ratings.

Reference Global Association of Risk Professionals. Valuation and Risk Models. New York, NY: Pearson, 2022. Chapter 5. Country Risk: Determinants, Measures, and Implications.