Answer: <u><em>My favorite dessert is cake, because it is rich and creamy.</em></u>
Explanation: The predicate nominative is IDENTIFYING what it is "my favorite dessert is what?" "CAKE". The predicate adjective is DESCRIBING it. Because it is what?" "RICH and CREAMY".
I hope this helps, this is how I see it.
Like at the beginning of the book? Where the capulets and Montagues got into a street fight and the prince came and said that if this were to ever happen again they would be sentenced to death.
She should change the voice to the one that pleases her the most