Answer:
I think it's b
Explanation:
altho I don't know what the sentence your replacing or the article but b looks like a good choice
Yes, you are correct about change of water into water vapours , also you will think it is doesn't have any importance and is waste for the plant energy. But it is a “NECESSARY EVIL” as it cools down the plant , transport water,minerals and also Plant hormones,etc. May you got your answer
It was common for people to run for public office in order to get rich.