Answer:
Khai k tha have been making
I think the correct answer from the choices listed above is the second option. The word that has a neutral connotation would be multilevel. Connotation is the associated or secondary meaning of a word or expression in addition to its explicit or primary meaning. Multilevel in any definition would not relay any good or bad feeling to it. Hope this answers the question.
:)
The word "while" is what makes the sentence a fragment, and substituting it with "when" would not correct it. The correct answer is B. delete "while" so that the sentence is: "She was making a pot of soup."