The diagrams illustrate two configurations of a pair of identical bar magnets. Three points, P, Q and R, are marked. At which point is the magnetic field produced by the magnets the weakest, and at which point is it the strongest?
- Aweakest at P; strongest at Q
- Bweakest at P; strongest at R
- Cweakest at Q; strongest at P
- Dweakest at Q; strongest at R