Given a text T, and several options, according to the question posed in the text T to choose the most appropriate option from the options as the answer, please directly output the most appropriate option, do not need to output the explanation.

UNAB CorporationOn 1 January 20X2, Deem Advisors purchased a $10 million six-year senior unsecured bond issued by UNAB Corporation. Six months later (1 July 20X2), concerned about the portfolio's credit exposure to UNAB, Doris Morrison, the chief investment officer at Deem Advisors, purchases a $10 million CDS with a standardized coupon rate of 5%. The reference obligation of the CDS is the UNAB bond owned by Deem Advisors.On 1 January 20X3, Morrison asks Bill Watt, a derivatives analyst, to assess the current credit quality of UNAB bonds and the value of Deem Advisor's CDS on UNAB debt. Watt gathers the following information on the UNAB's debt issues currently trading in the market:? Bond 1: A two-year senior unsecured bond trading at 40% of par? Bond 2: A six-year senior unsecured bond trading at 50% of par? Bond 3: A six-year subordinated unsecured bond trading at 20% of parWith respect to the credit quality of UNAB, Watt makes the following statement:“There is severe near-term stress in the financial markets and UNAB's credit curve clearly reflects the difficult environment.”On 1 July 20X3, UNAB fails to make a scheduled interest payment on the outstanding subordinated unsecured obligation after a grace period; however, the company does not file for bankruptcy. Morrison asks Watt to determine if UNAB experienced a credit event and, if so, to recommend a settlement preference.Kand CorporationMorrison is considering purchasing a 10-year CDS on Kand Corporation debt to hedge its current portfolio position. She instructs Watt to determine if an upfront payment would be required and, if so, the amount of the premium. Watt presents the information for the CDS in Exhibit 1.
| Exhibit 1.Summary Data for 10-year CDS on K and Corporation |
| Credit spread | 700 basis points |
| Duration | 7 years |
| Coupon rate | 5% |


Morrison purchases the 10-year CDS on Kand Corporation debt. Two months later the credit spread for Kand Corp. has increased by 200 basis points. Morrison asks Watt to close out the firm's CDS position on Kand Corporation by entering into new offsetting contracts.Tollunt CorporationDeem Advisors' chief credit analyst recently reported that Tollunt Corporation's five-year bond is currently yielding 7% and a comparable CDS contract has a credit spread of 4.25%. Since Libor is 2.5%, Watt has recommended executing a basis trade to take advantage of the pricing of the Tollunt's bonds and CDS. The basis trade would consist of purchasing both the bond and the CDS contract.
According to Watt's statement, the shape of UNAB's credit curve is most likely:
Option A:flat.
Option B:upward-sloping.
Option C:downward-sloping.

Answer: C