## **Core Concept**
The question requires identification of a tooth based on its morphological features, specifically the description of the crown and root. This involves knowledge of dental anatomy, particularly the characteristics of different teeth.

## **Why the Correct Answer is Right**
The description provided points towards a maxillary central incisor. Key features include:
- The buccal surface showing 3 cusps of equal size is not typical but the overall description fits a maxillary central incisor, which usually has a more prominent feature of having a single large cusp but can have variations.
- The occlusal surface appearing rectangular with a slight distal convergence of the crown is characteristic of maxillary incisors.
- The root is described as long and slender with exaggerated flaring, which is also consistent with a maxillary central incisor, known for having a long, straight, and sometimes flared root.

## **Why Each Wrong Option is Incorrect**
- **Option A:** Without specific details on the options, we can't directly address why A, B, or D are incorrect, but generally, other incisors (like lateral incisors) or canines might have different root and crown features. For example, maxillary lateral incisors often have a more tapered crown and a shorter root compared to central incisors.
- **Option B:** Similarly, this would depend on the specific tooth listed, but if it doesn't match the description of a maxillary central incisor, it would be incorrect based on the morphological features provided.
- **Option D:** Again, this would be incorrect if the tooth does not fit the description provided for a maxillary central incisor.

## **Clinical Pearl / High-Yield Fact**
In dental trauma, especially avulsion, the immediate management includes gently rinsing the tooth with saline, soaking it in milk or saline if possible, and reimplanting it as soon as possible. The success of reimplantation depends on the extra-alveolar time and how well the periodontal ligament is preserved.

## **Correct Answer:** C.