That he is a great writer and he has the most books wrote
It's basically just saying to appreciate everything you have in life, whether you have a lot or a little. It also says that objects don't make happiness.
More explanation please we need the story to answer or is this Sunday school stuff
A—
This sentence pretty much sums up what the writer of the passage wants to talk about. The other ones do not fit with the sentence “water is one factor that is necessary for growth” and do not fit the idea of the passage, which is what factors affect plant growth.