Final answer:
The 'lone appellation' of Nova Scotia is unclear without more context. None of the provided options is understood as a 'lone appellation.' A nickname like 'Canada's Ocean Playground' might be considered a unique identifier, as could the historical name 'Acadia'.
Step-by-step explanation:
The term “lone appellation” in relation to Nova Scotia is not widely recognized or defined. If the question is referring to a unique or distinct name for a region in Nova Scotia, then none of the options (Annapolis Valley, Gaspereau Valley, Grand Pré, Malagash) represent a “lone appellation” as they are all names of different areas within Nova Scotia. Without more context, it is challenging to provide a definitive answer to this question.
However, if by “lone appellation” the question is asking for a unique identification or name that is associated only with Nova Scotia, we might consider its nickname “Canada’s Ocean Playground” or the historic name of “Acadia”, which referred to the territories including modern-day Nova Scotia during French colonial times. These could be considered singular or “lone” appellations in a broad sense and are emblematic of the province’s identity.