Final answer:
The cement that offers potential caries protection is Glass ionomer.
Step-by-step explanation:
The cement that offers potential caries protection is Glass ionomer. Glass ionomer cement is a type of dental restorative material that contains fluoride, which helps to prevent tooth decay and protect against caries. It releases fluoride ions over time, promoting remineralization and inhibiting the growth of bacteria.
Zinc phosphate cement, on the other hand, does not offer caries protection. It is a traditional dental cement that is primarily used for strong permanent cementation of crowns and bridges.
Resin-modified glass ionomer cement combines the benefits of glass ionomer and resin-based materials, making it a good choice for restorations that require caries protection and improved esthetics.
The correct answer is B. Glass ionomer.