2. 'rbu are considering the purchase of a callable corporate bond. You have two analytical systems ayai value the bond. In one system, System A, the vendor uses the on-the-run Treasury issues to construct spot rate that is used to construct a model to compute the GAS. The o'ler analytical system, System run issue for the particular issuer in constructing a model to compute the GAS. a. Suppose that using System A, you nd that the GAS for the callable corporate you are considering i HOW should you interpret this OAS value? b. Suppose that using System B. you nd that the GAS computed is 15 basis points. How should you in value? c. Suppose that a dealer rm shows you another callable corporate bond of the same credit quality a ms of 40 basis points. Should you yiew that this bond is more attractive or less attractive than the iss considering for purchase