A non-symmetrical tank aboard a MODU contains 390 tons of ballast at a VCG of 9.85 feet. Ballast weighing 250 tons and a VCG of 12.0 feet is discharged. The vertical moments for the remaining ballast is ______.

A
842 ft-long tons
B
3,000 ft-long tons
C
3,842 ft-long tons
D
6,842 ft-long tons
E