A user enters the single-word query 'jaguar' into a search engine. The system is designed to automatically expand this query to better capture the user's potential intent. Below are three sets of expanded queries generated by different versions of the system. Analyze each set and determine which one demonstrates the most effective strategy for handling the ambiguity of the initial query. Justify your choice by explaining the strengths of your selected set and the weaknesses of the other two.

Set A: "fast jaguar", "big jaguar", "buy jaguar", "new jaguar" Set B: "jaguar car", "jaguar animal", "Jacksonville Jaguars football", "macOS Jaguar operating system" Set C: "jaguar", "jaguars", "jaguar's", "the jaguar"