For the permanent magnet/ compass experiment, you have measured the magnetic field B at several distances r from the center of the permanent magnet. You plotted the natural log of the magnetic field In(B) versus the natural log of the distance In(r) and found a straight line with a slope of -2.9. The intercept was 15, what is the magnetic dipole moment of the magnet?

a. 1.5 Am2

b. 2.9 Am2

c. 5.2Am2

d. 7.5 Am2

e. 15 Am2