Take the following as truth: Using Scenario D as an example, the remaining allowances in 2015 are 100 million metric tons for carbon, 1.3 million tons for SO2, 0.2 million tons for NOx and 25 tons for mercury.
Then the following statement: "In 2015, the allowance remaining for carbon exceeded 90 million metric tons." is true, false, or inconclusive?
Answer: True