Your company is sponsoring a new oil-based power-plant. The power produced will be sold to a power distribution company, which is your only buyer from this project. Currently you are drafting the offtake contract. Which of the following provisions will you consider prudent to include in the offtake contract?
a. Link the sales price to Brent crude oil price index.
b. Link the sales price to construction materials price index.
c. Link the sales price to Wholesale price index.
d. Link the sales price to consumer price index.