What is the difference between interest rate swap price and valuation?

a. Swap price and valuation are the same

b. The valuation is expressed in %, while the price is in $.

c. Price is the price of the fixed rate bond where the rate is fixed at the swap rate level, valuation is price of the fixed rate

d. Price refers to the fixed rate at the inception of the trade, valuation is the price of the fixed rate bond where the rate is fixed at the swap rate level at any particular point in time

e. Price refers to the fixed rate at the inception of the trade, valuation is the rate at which the trade can be unwound at any particular point in time