B. hints that tell a reader what is going to happen in a story :)
On the research team of the eminent virologist Dr. Thomas Francis, who was working on a flu vaccine, was a young physician<span> named Jonas Salk.</span><span>
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ANSWER is option D.
Because if you think about it, the Atlantic is a vast distance, but a puddle really isnt. So comparing such a large distance (the Atlantic) to such a small one (puddle) is understatement.
Chapter 9 tells us that Mrs. Johansen has brought Annemarie, Kirsti and Ellen to stay at her brother's (Henrik) house for a few days. In previous chapters, we find out that Ellen comes to stay with the Johansen's for her own safety. She is to act as the third daughter of the house. When the German soldiers demand evidence that Ellen is actually a Johansen,...
You didnt provide us the information for the book..?