Final answer:
The 12-letter word that comes between "Sweethearts" & "Hearts" for candies with sayings is 'Conversation.' These candies are significant for their emotional and visual appeal.
Step-by-step explanation:
The correct answer to the question is Conversation Hearts. When it comes to the candies with sayings on them, commonly seen around Valentine's Day, the 12-letter word that fits between "Sweethearts" & "Hearts" would be Conversation. These candies, known for their various sayings, appeal to the sweetness of the holiday. The taste of sweetness is significant not only in the literal sense but also in the emotional appeal these treats carry. They are colorful, and their appealing visuals contribute significantly to their popularity during the Valentine season.