Final answer:
The Galley/Aisle FA (D3) working in the Delta One cabin is tasked with overseeing the premium cabin service(option 2) , focusing on the high-quality service experience for passengers.
Step-by-step explanation:
The Galley/Aisle FA (D3) working in the Delta One cabin is responsible for overseeing the premium cabin service. This role focuses on ensuring that passengers in the premium cabin receive the highest level of service. The duties include coordinating meal services, addressing passenger needs, and maintaining the overall quality and standards of the cabin experience.
Option 1 (managing the cockpit crew) is not the responsibility of the Galley/Aisle FA (D3); this typically falls under the purview of the Captain or Lead Pilot. Option 3 (assisting with lavatory maintenance) and Option 4 (coordinating with ground services) are not the primary duties of a Galley/Aisle FA (D3), as their main focus is on passenger service within the cabin.