This is simply the percentage of interest to be paid on the bond periodically.a.Nominal Yieldb.Realized Yieldc.Yield to calld.Current Yield

To determine the periodic interest paid on a bond, the correct term among the provided options is Current Yield.

Explanation:

1. Nominal Yield: This is the interest rate stated on the bond, usually expressed as a percentage of the face value, but does not take into account the price paid for the bond.
2. Realized Yield: This reflects the actual return on an investment, taking into account the income received and any capital gains or losses, often over a specific holding period.
3. Yield to Call: This calculates the yield of a bond if it is called before maturity at the specified call date. This is useful for callable bonds.
4. Current Yield: This is calculated by taking the annual coupon payment divided by the current market price of the bond, representing the income as a percentage of the purchase price.

Thus, for periodic interest, the Current Yield accurately represents the interest to be paid on the bond periodically based on its current price.