Four identical current carrying loops [a - d] immersed in a uniform, rightward pointing magnetic field E are shown in the figure below. The intended labeling of the loops [a d} are as described below: Loop a is the upper leftmost one. Loop b is the lower leftmost one. Loop c is the 'middle' one. Loop d is the rightmost one. Each of these four identical loops is oriented such that their magnetic dipole moment vectors are in the plane of the page. For each loop, the direction of the magnetic dipole moment vector is not shown but does lie along the red line through the loop's center and can be determined in each loop case. Question: Rank the magnetic energies of each loop in the figure above, from least to greatest. Hint: Magnetic Energies can be either positive, negative, or zeroI so you must account for sign in your ranking