An illustration shows you exactly what the book is trying to portray by using pictures or descriptive text. An illusion can be used to deceive someone or something into making it look like it is something else.
Benefits - easy to obtain , reliable. drawbacks - bad for environment , theres better alternatives
B seems to be the best answer.
I think the correct answer would be C. The correct sentence would be that "Florence is inland, not Venice. It is on a peninsula." Option A would not be true based on the statement that was stated above. It was not saying anything about being a city of Italy. Option C would be correct as it compares the two places.<span />