To accurately determine the degree of overlap between the two distributions of visitor data for Elm Grove and Cathedral Rock, we would need to analyze their line plots directly. Since we don't have the actual line plots or the data represented in them, we cannot definitively choose one of the responses based on factual information.
However, if you had access to the plots or data, you would look for common visitor counts between both parks to assess overlap. If both parks have many similar visitor counts, you could conclude that the degree of overlap is high; if their visitor counts are very different, the overlap would be low or non-existent.
Based on your descriptions of the responses, you might infer the degree of overlap based on visual inspection of the line plots or statistical measures of similarity. If you have specific data or characteristics of the plots, I'd be happy to assist further in analyzing that information.