The best reasoning for the water filtration method Jenna and her family should choose is "reverse osmosis because it requires low maintenance, and removes all contaminants such as bacteria and chemicals."
Rationale:
- Reverse Osmosis (RO) is known for its effectiveness in removing a wide range of contaminants, including bacteria, chemicals, and other impurities.
- It typically requires low maintenance compared to other methods like ultraviolet (UV) systems, which require regular replacement of bulbs and monitoring to ensure effectiveness.
- While UV radiation is effective against bacteria, it does not remove chemical contaminants, thus making reverse osmosis a more comprehensive solution.
The other options incorrectly state that either UV radiation or reverse osmosis "removes all contaminants," while some contaminants may remain after UV treatment. Therefore, reverse osmosis offers a more reliable filtration solution for a household.