A 10-year Treasury bond is currently yielding 3.88% whereas a 10-year AAA callable corporate debt is yielding 5.61%. What types of risk does the 173 bps spread over the treasury reflect?

I. Credit Risk

II. Call Risk

III. Interest Rate Risk

IV. Reinvestment Rate Risk

V. Inflation Rate Risk

A. I, II, V

B. I, II

C. III, IV, V

D. I, IV

E. II, IV