Could you tell us from what book
Last sentance is incorrect
Answer: Preposition
Explanation:
The word "about" functions as a preposition in the given sentence. As a preposition, the word "about" is used to indicate the subject of Adela's favorite story.
You would need to find a credible source that has statistics to show which soap is the most and least effective. Try researching labs that have to do with this topic or pulling data from educational sites. What topic is this essay? Informative? Argumentative? I would need to know the genre to give a more clear answer, and supporting details for your essay can go in your thesis.