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A 14% annual pay coupon bond has 6 years to maturity. The bond is currently trading at par. Using a 25 basis point change in yield, the approximate modified duration of bond is closet to.
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A 0.392

B 3.888

C 3.970

The answer shown is B on Kaplan. But how do you find V- & V+ in the first place ?

The question didn’t give YTM% so I can’t seem to solve for V- or V+

Much appreciated.