Final answer:
The percentage change in total MSW generation between 1960 and 2000 is 100%. the correct answer is D. 100%.
Step-by-step explanation:
The question is asking about the percentage change in total Municipal Solid Waste (MSW) generation between 1960 and 2000. To find the percentage change, we need to calculate the difference between the two values and then divide it by the initial value and multiply by 100.
Let's assume that in 1960 the MSW generation was 100 units, and in 2000 it was 200 units.
The percentage change would be calculated as follows:
(200 - 100) / 100 * 100 = 100%
Therefore, the correct answer is D. 100%.