Final answer:
The term 'salacious' represents something that is intended to arouse sexual desires and is best matched with the word 'lustful'.
Step-by-step explanation:
The word 'salacious' is an adjective that describes something that provokes or shows an undue interest in sexual matters. If you have to choose the term that best matches 'salacious' from the provided options, the correct answer would be 3) Lustful. The word is often used to describe behavior, books, pictures, or talk that is intended to arouse sexual desires or is inappropriately sexualizing. The other options, namely lecherous, can be considered somewhat synonymous, but chaste and innocent are antonyms to salacious, which implies purity and the absence of sexual interest or activity.