161. What is the main purpose of this web page? (A)The primary focus of the web page is to offer tips on how to choose the right color temperature for different room settings, without pushing a particular product. (B)This web page is primarily a resource for understanding the environmental impact of different lighting options, rather than promoting the sale of EcoLite LED bulbs. (C)The main purpose of this web page is to provide an unbiased review of the best energy-efficient light bulbs available on the market. (D)While the web page does provide tips for shopping for energy-efficient light bulbs, its primary purpose is to promote and facilitate the purchase of EcoLite LED bulbs.