<span>B) It suggests that the author seriously doubts whether the thermometer pill can keep all the promises it claims to make. </span>
"like a sunbeam" - it is used to give deeper meaning and description to what her face looks like in person so the reader can feel as if they are standing in front of her seeing that face.
Him.
If you don't know how to solve this, you can put each word in to the blank and see which sounds right.
