Answer: D. Municipal premium bonds quoted on a yield basis must be priced to the near-term in whole call date
Explanation:
Yield to worst refers to the lowest possible yield which can be gotten on a bond which operates fully within the terms of the contract and doesn't default.
Under MSRB rules, yield to worst means the Municipal premium bonds quoted on a yield basis must be priced to the near-term in whole call date.
Therefore, the correct option is D.