Option 'C' is correct
Step-by-step explanation:
Present value of an ordinary annuity of $1
The present value of an annuity is the current value of future payments from an annuity, given a specified rate of return or discount rate.
The future estimation of cash is determined by utilizing a rebate rate. The markdown rate alludes to a financing cost or an accepted pace of profit for different speculations. The littlest markdown rate utilized in these figurings is the hazard free pace of return. U.S. Treasury bonds are commonly viewed as the nearest thing to a hazard-free venture, so their arrival is regularly utilized for this reason.