<span>Bob Ewell is filled with hate following the </span>trial<span> and attempts to get revenge on Atticus by murdering his children. Fortunately, Boo Radley intervenes and stops Bob from seriously harming Jem and Scout.</span>
Answer:
means someone's sarcastic
Explanation:
"That person is caustic," means "That person is sarcastic/mean/harsh." If someone says something "caustically," it means that they are saying something in a sarcastic/hurtful way. Hope this helps. :-)
I believe it would refer to intelligence quotient.