Which of the following explains why modified duration should least likely be used for bonds with call options? Modified duration assumes that the cash flows on the bond will: 
 
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 B)  | 
change with the bond's embedded options. |    |  
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 C)  | 
be affected by a convertible bond. |    |    
 
Modified duration assumes that the cash flows on the bond will not change (i.e., that we are dealing with non-callable bonds). This greatly differs from effective duration, which considers expected changes in cash flows that may occur for bonds with embedded options. 
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