With regard to a ballast system associated with a dry cargo ship, what is the primary purpose of the forepeak and aft peak tanks?

Correct Answer: Option B — Adjusting the trim of the vessel.

Forepeak and aft peak tanks are located at the extreme ends of the vessel. By filling or emptying these tanks, the Master can significantly alter the longitudinal distribution of weight, effectively adjusting the vessel's trim to optimize hydrodynamic performance or meet specific draft requirements at the bow and stern.