Which of the following uses who and whom correctly?

1) who loves science?
2) the class whom has the best projects will go on a trip.
3) who is this package for?
4) jayden is the boy whom scored the goal in the big game.

I believe the answer is 4. ( I had this same question on my test I'm not very positive about the answer though)

I HOPE this it's RIGHT!!! Sorry if not, just trying to help. Good Luck!

i believe that's the correct answer

the direction of the magnetic field produced by an electric current will change when the direction of the electric current changes. for example : if a current is flowing in a straight length of wire, the magnetic field is described by a concentric circle (using right-hand rule).