Choose your answer from:
[A]. bass
[B]. lake
[C]. H20
[D]. h2o
[E]. heat
[F]. vitamins
[G]. hydrogen
[H]. bogs

Fact 1: Running water is better able to dissolve oxygen and nutrients than standing water. Fact 2: Water is made up of H2O molecules. Given the two facts above, what is better able to dissolve oxygen and nutrients when it's running over standing?
Answer:
[D].