Which sentence is the best use of passive voice

1) the door was opened by katrina when the bell was rung by lana

2) water is formed by two molecules of hydrogen and one of oxygen

3) the story was read by each person in the class, taking turns.

4) this paper airplane was folded by andrea and thrown at me

"Water is formed by two molecules of hydrogen and one molecule of oxygen" is the passive voice statement.

Option (b);

EXPLANATION:

A sentence can be written in both active voice and passive voice. The active voice explains the subject part of the sentence and in the passive voice the verb is highlighted instead of the subject. These passive voice are mostly not preferred in writing the sentences.

The options like first, third and fourth statement gives an unclear voice statement while the second option, explains the formation of the water molecule and outcomes on that formation. Thus it is revealed to be a passive voice statement.

"get off of your lazy bum and come running with me or i'm dumping this pitcher of water on u " u say with a smile. she thinks your joking so she ignores you about 10 seconds later shes screaming wile water is dripping everywhere you say "here comes the second one! " then you here her say okay, your such a j e r k ! ill be ready in 5 put the pitcher down " she say in an angry tone. and you smile in victory

good enough?