Credent definition: believing or believable.
Answer:
Four teenage refugees from Bosnia talk to UPDATE about the hardships of life during wartime, and the experience of escaping to America. The war in the Balkans has caused grievous suffering for millions of people. ... And nearly 25 percent of all the refugees created by the war are between the ages of 10 and 17.
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."
