B.
my daughter has those kinds of problems sometimes she also has a little brother all though hes 2 yrs old not stil a newborn. but what helped with my daughter is sitting her down and tellign her that what she does her little brother sees and will do the same thing that she does , so if she does the wrong thing then shes teaching her little brother to do the wrong thing and will get him in trouble.
also we have this floor dance game that plugs into the TV, its disney has differant disney songs , if your famular with Dance Dance Revolution for the playstation 2 its like that but for kids, she never does really well at steping on the right arrows but she has a lot of fun jumping up and down and dancing on it that might help her burn off that energy shes useing on the sofa.