It would be B. Which is a big issue
Torvald Helmer would love his wife Nora as an equal
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.
Because Bill Moyers want to know that people about her poetry.