Final answer:
The correct term for someone who ruthlessly preys upon others, an apt description for Anne Rice's character Lestat, is 'vampiric'. Option C is correct
Step-by-step explanation:
A person who preys ruthlessly upon others, as well as Anne Rice's character Lestat, is often described as vampiric. A vampiric individual is someone who is like a vampire, not just in the literal sense of being a mythological creature that feeds on the blood of the living, but also in a metaphorical sense, as someone who exploits others without compassion. The term captures the essence of predatory behavior and often includes a sense of allure and danger, much like the character of Lestat in Anne Rice's novels.