What type of chair does the code MERU® signify?

The code MERU® signifies a "Meru Travel chair," which is designed to assist passengers with disabilities. This type of chair provides important mobility support for travelers who may require additional assistance when moving within the airport or on the aircraft. The Meru Travel chair is specifically designed to facilitate comfort and safety for passengers with mobility challenges, ensuring they can move more freely during their journey.

The other options represent unrelated items or services. For instance, while oxygen on board is critical for certain medical needs, it does not relate to a specific chair type. Similarly, musical instruments and cabin baggage pertain to different aspects of travel but do not directly connect to the concept of specialized seating for passengers with disabilities. Thus, the context in aviation service provisions clearly supports the identification of MERU® with the Meru Travel chair.