Final answer:
Paula's reaction to seeing her grandfather again can be described as thrilled.
Step-by-step explanation:
Based on the description provided, the most precise description of Paula's reaction to seeing her grandfather again would be Option D) Paula was thrilled to see her grandfather again.
In the paragraph, it is mentioned that Paula just wanted to give her grandfather a huge hug and not let go. This suggests a strong emotional response, indicating excitement and joy. The word 'thrilled' accurately captures this intense reaction.