The correct answer is:
On the other hand.
"He looked forward to visiting with old friends. Greta, on the other hand, dreaded seeing her old boyfriend."
This phrase is showing Greta and Fred are having different feelings in that moment, creating a contrast between both of them.
A betrayal of confidence or trust.........
Characters<span>Cassie Logan </span> - The narrator and protagonist. Cassie is the second-oldest Logan child. She has a fiery temper like her Uncle Hammer. Also, she is very naive concerning the facts of racism.<span>Little Man (Clayton Chester Logan) </span> - A meticulously neat first-grader, Little Man is the youngest of the Logan children.<span>Stacey Logan </span> - A thirteen-year-old boy, Stacey is the oldest of the Logan children. He is part-adult, part-child.Christopher-John - A cheerful seven-year-old, Christopher-John is the second youngest of the Logan children. He is timid.<span>Papa (David Logan) </span> - Cassie's father. He values his independence highly, leaving to work on the railroad in order not to lose ownership of Logan land.Mama (Mary Logan) - Cassie's mother, a schoolteacher.Uncle Hammer - Papa's brother, Hammer lives in Chicago. He has a short temper.
Explanation: the answer is he
I believe the answer to this question would be either a metaphor, idiom, or alliteration. But this would most likely be idiom because people can interpret different meanings of this phrase negative or positive and can take it personally or extensively.