What does the dynamic marking mf mean in measure 1?

Ineed some on finding music. i have a nephew who is into rap, but when i find a rap song, it seems to either be too old for his taste or to him it isn't good enough. can someone suggest some good music for me to see if he likes it or not?

Place the follow items in the correct order. reorder answers 1. lennie admits that he gets in trouble for petting soft things, and curley's wife mentions that her hair is soft. reorder answers 2. candy finds curley's wife dead, and finds george. reorder answers 3. lennie pets the puppy too hard and kills it. reorder answers 4. curley's wife tells lennie not to worry about the puppy. reorder answers 5. everyone leaves to find lennie. reorder answers 6. curley decides he's going to shoot lennie, and crooks mentioned that his gun is gone. reorder answers 7. lennie remembers to go to the place in the woods if something bad happens and leaves. reorder answers 8. lennie pets curley's wife's soft hair and accidentally breaks her neck.

The house above has an overall emphasis. a. vertical b. horizontal c. diagonal