While being towed at a 19.5 foot draft, the DEEP DRILLER experiences single amplitude pitching of 7.5 degrees with an 8 second period. You should ________________.

A
continue towing operations and carefully monitor vessel motions
B
alter course into the wind to improve motion characteristics
C
ballast the rig to a 45 foot draft and check the vessel motion at the new draft
D
ballast the rig to a 60 foot draft and check vessel motion at the new draft
E