Final answer:
The correct answer is C. ¿Cómo estás? This question reflects a casual greeting, common in informal conversations. Question intonation and friendly tones define such interactions.
Explanation:
The correct answer is C. ¿Cómo estás? This question best completes the conversation between Elena and Jaime as it directly translates to 'How are you?' which fits the context of a casual greeting. In the provided case study, the clerk's question 'How are you folks doing?' aligns with the informal nature of the conversation.
Using question intonation and common greetings like 'How are you?' are typical in everyday conversations, reflecting a friendly tone with little formality. Responses to such inquiries often follow cultural norms and may vary based on context.
Learn more about Selecting the correct question completion for a conversation here:
https://brainly.com/question/18157750
