the answer is b. here is why here are some examples
An adverb clause is a group of words that function as an adverb in a sentence. The clause can modify or describe verbs, adverbs, and adjectives. In general, adverb clauses add information that elaborates on when, where, why, how, how much or under what condition the action in the sentence takes place.
An adverb clause isn't just any group of words, however. A clause must contain a subject and a verb to be complete. An adverb clause also begins with a subordinating conjunction, such as "after," "if," "because" and "although." If you see a group of words in a sentence that acts like an adverb but does not have both a subject and a verb, it's an adverb phrase.
Well valor is a large attribute if you fight a war. But what the new world wants is a way to end the war. so attributes don't matter unless your talking about the medieval era. Cause in todays society we look for ways to end wars weather it be making new weapons that kill faster and seem inhumane we don't care we just want are troops back and alive.
B. The sentence needs a clearer controlling idea
1. Which of the following would most likely appear in a feature article, but not in a news article, about Hurricane Katrina? - 2..a sidebar containing a brief interview with a former New Orleans resident who was displaced by the storm
2. Something that is prevalent happens C. often
