According to McKinsey, what might be a projected cost for removing between 3 and 4.5 gigatons of carbon emissions from U.S. output?

a. The cost would require redistributing about 3.5 percent or more of the total U.S. budget.
b. The cost would require redistributing about 5 percent or more of the total Russian budget.
c The cost would require redistributing about 7.5 percent or more of the total U.S. budget.
d. The cost would require redistributing about 7.5 percent or more of the total Chinese budget

Ans: c