Final answer:
To correctly write the title of the sentence 'Tuck Everlasting is a famous novel written by Natalie Babbitt,' you should italicize 'Tuck Everlasting,' capitalize the first letter of each word (except for articles), and use 'written by' to clarify the author.
Step-by-step explanation:
The correct title for the sentence is: Tuck Everlasting is a famous novel written by Natalie Babbitt.
In the original sentence, 'Tuck Everlasting' should be written in italics as it is a book title. Additionally, it is important to capitalize the first letter of each word in the title except for articles (e.g., 'a', 'an', 'the').
Finally, 'written' should be changed to 'written by' to clarify that Natalie Babbitt is the author of the novel.