What must a flight attendant state aloud while administering oxygen to a passenger?

The correct response emphasizes the importance of clear communication in an emergency situation. By stating, "I am now administering oxygen," the flight attendant is providing the passenger with immediate and direct information about the action being taken. This declarative statement ensures that the passenger understands the nature of the assistance they are receiving, which can help alleviate any anxiety or confusion during a stressful situation.

Effective communication is crucial during emergencies as it can guide passengers in understanding what is happening and what they need to do. Recognizing that oxygen is being administered specifically helps to establish awareness and allows the passenger to respond appropriately, such as focusing on their breathing.

The other options, while informative, do not convey the same clarity about the immediate action of administering oxygen. They lack the direct personal engagement that helps to reassure the passenger in a clear and direct manner.