Final answer:
Moira's thoughts on Ronnie's 'key demographic' likely refer to the specific audience or group of people that Ronnie resonates with the most, based on certain characteristics.
Step-by-step explanation:
If we're discussing Moira's thoughts on Ronnie's "key demographic," it seems we're likely referring to a character analysis or thematic discussion in a work of literature or television. Without context on the specific work or characters named Moira and Ronnie, it's difficult to provide an exact answer.
However, the term "demographic" generally refers to a group of people characterized by a particular set of qualities such as age, race, gender, income, and interests that a product, service, or in this case, perhaps a character like Ronnie, is aimed at. If Moira is a character analyzing Ronnie's appeal, she might be speculating on which specific audience Ronnie resonates with the most based on these characteristics.