Prepositions show location, direction and time. They are words that are being used to link phrases, nouns and pronouns in a sentence. They are placed before the phrase that is to be linked. Examples are at, to, in, on, from and the like.
c. the forced door to the birdcage
Mrs. Wright asked Mrs. Peters and Mrs. Hales to go to the farmhouse and collect a few things for her. The trifles began with Mrs. Wrights kitchen described (by the two) as messy and hastily deserted.
The best revision of the modifier "badly" in the sentence 5 is "bad" : She felt <em>bad</em> that someone had lost such a nice watch. The word badly is an <em>adverb</em>, the word that modifies other words and verbs: <em>badly made furniture ; she was treated very badly. </em>In this sentence (modified)<em>, </em>the word<em> bad </em>is an<em> adjective </em>that follows a <em>linking verb</em> "<em>felt."</em>
I think the answer is B. It is not A, for it IS mandatory as it says that in the text. It is not C, because it is not said in the text, and it is an opinion. And it is not D, yet it is true. It has not been spoken of in the text. Therefore, B is your best bet. Hope this helps!