She uses him as a means to become more powerful and basically as a tool to kill those in their (her) way
Inform, it is informing teenagers, and older children on how they can save money
Lethargic means lazy, depressed, whereas vital means full of life. As you can see, these two words are antonyms, meaning that they have completely different meanings. So, in order to finish the analogy, we need to find the antonym of the word trite. Trite means cliche, overused, so its antonym would be original, unique, or something in that vein.
So, the correct answer could be original.
