The meaning of ethical obligations

Which sentence uses the denotative meaning of the word blue? i was feeling pretty blue when i lost my favorite earrings. i wore a blue scarf to complement the color of my eyes. the characters in the book all seemed rather blue. the movie’s ending always puts me in a blue mood.

When readers use their own knowledge about a subject to come to a conclusion about a text, it is called a. finding a themeb. reading carefullyc. making inferencesd. questioning the textneed !

What is the compartive from of the adjective ? hot-cheap-nice-wet-warm-cold-polite