What is the message the author wants us to know in the book the giving tree

answer; /// the correct answer to the above statement is (a) because of the decline on native american labor forces;

answer; /// i do believe the correct answer is (c) public education;

the rhyme scheme is abab cdcd efef gg.

b is the answer.   i sat on the lumpy sofa, totally exhausted, with a bad taste in my mouth, wondering what i should do next.