In panel B, what causes the ball to move toward Can 1?

1 What is the charge on Can 1 at the moment shown in panel B?
A.same as Van de Graaff
B.opposite of Van de Graaff
C.neutral
2 What is the charge on Can 2 at the moment shown in panel B?
A.same as Van de Graaff
B.opposite of Van de Graaff
C.neutral
3 What is the charge on the ball at the moment shown in panel B?
A.same as Van de Graaff
B.opposite of Van de Graaff
C.neutral

In panel B what causes the ball to move toward Can 1 1 What is the charge on Can 1 at the moment shown in panel B Asame as Van de Graaff Bopposite of Van de Gra class=