Final answer:
The type of store indicated by the sign in Guadalajara, with references to sugary merchandise and display signs, is a candy store.
Step-by-step explanation:
The student is asking about the type of store they encountered while on vacation in Guadalajara, specifically a store with a sign that led them to ask whether it might be a clothing store, candy store, jewelry store, or shoe store. Considering the references provided, particularly the one mentioning Estes characterizing the sugary merchandise and display signs found in a local candy shop, and the vicarious experience of looking through the window filled with wonderful choices, it can be deduced that the store in question is most likely a candy store (option 2).