Answer:
The correct option is D,default risk differences
Explanation:
Default risk is the risk which stems from the fact that the borrower might fail to discharge its obligation in paying interest and principal as and when due as contained in the debt contract agreement.
The investor is expected to be compensated for default risk,in other words,highly risky investment pays a spread over and above risk free investment return.
Government Treasury Notes are risk-free,pays zero compensation for default risk, while corporate bonds that more riskier pays a little extra to entice investors to invest in their bonds,otherwise the planned amount expected from bond issuance would not be realized.