Multi-select problem: How does the next paragraph end?

How to choose between a bagless and a bagged vacuum cleaner 
Determine how environmentally-friendly you want your vacuum cleaner to be. 
Bagless vacuum cleaners tend to be better for the environment. This is because they do not produce anything to throw away other than the dirt collected.

Choose your answer from:
(i) Simple vacuuming will often produce items to throw away without harm, but bagless vacuums will produce more materials to dispose of or to be reused. Choose bagless vacuum cleaners with free air-filter attachments.
(ii) Bagless machines can be clean more easily and without clumping and rubbing, but bagless vacuums tend to produce a lot of fumes and stink. Bagless vacuums usually take up less space on a wall, overhead or along an open window or door than bagless ones.
(iii) Bagless vacuum cleaners range in price from $100 to several hundred dollars. They are good for cleaning microfiber floors, toilet floor, or clean sinks.
(iv) Bagged vacuums, on the other hand, may go through dozens or hundreds of disposable bags during their lifetimes. Keeping excess trash out of landfills benefits the environment.
(iv)