This is removed from the Dodge site:
B. 17-inch chrome-clad steel wheel, standard on 2500/3500 SLT, Mega Cab™ SLT, TRX4, Off-Road. and Laramie. Available on ST models.
C. 17-inch polished forged aluminum wheel. Standard on Power Wagon®, optional on Mega Cab™ SLT models.
D. 17-inch chrome-clad forged aluminum wheel. Standard on 2500/3500 SRW Sport and Laramie H. Available on Laramie and Mega Cab™ Laramie models.
E. 17-inch polished forged aluminum wheel. Available on 2500/3500 SLT and TRX4 Off-road SRW models.