Its B, Sarah will be joining us. Progressive is a verb that ends in ing.
Answer:
B
Explanation: a simile compares two things using like and as
If you add ly to lone then its going to say lonely.
I will assume you are referring to Jordan form the Great Gatsby. In the book, he calls her a loose woman, and many other things, but this one was the most important, to which she responded by choosing to ignore him completely.