Please help
What is the central idea of paragraph 2?
A.CFLs are better for the environment because they uses seventy-five percent less energy than incandescent light bulbs
B.CFLs have a higher initial cost but they help save money over time because they do not use a lot of energy and last for a while.
C. CFLs are better than incandescent light bulbs for the environment and consumers because they have a lifespan of 10,000 hours.
D. CFLs have a high initial cost, but they currently are the least expensive energy efficient light bulbs available for purchase.