Choose the option nearest in meaning to the underlined word(s).His plans boomeranged on him
Answer Details
The option nearest in meaning to the underlined word "boomeranged" is "backfired." When someone says that their plans have "boomeranged" on them, it means that their plans have had the opposite of the intended effect and have ended up causing them harm or difficulty. Therefore, "backfired," which means to have an unexpected and undesirable effect, is the option closest in meaning.