The answer is B. The introductory text in the sentence cannot stand alone.
Thus, the introductory text in the sentence cannot stand alone explains best why the colon after "including” should be removed.
Grandson teaches his grandson to respect nature.
1. Fairytale story about animals
2. Convince them to start using more bio-products and being more Earth-friendly
3. Tell them something about the world that they haven't heard of yet
4. About being safe and not bullying and what the school can do to help
5. How-to make some delicious dessert!
Skimming helps the reader to get to the main point or idea when reading through a text. It is a way of ensuring that you get to read the text quickly while getting the main point of the entire text