Geometry

Question Analysis:
This question asks you to identify the type of pyramid based on a regular base and centered apex.
The main focus is on recognizing a regular pyramid.

Key Concept Explanation:
A regular pyramid has a regular polygon base and the apex directly above the center, with all congruent lateral faces.

Step-by-Step Solution:
Hexagonal base → 6 equal sides.
Apex centered → not oblique.
Congruent faces → regular.
⇒ It must be a regular hexagonal pyramid.

Option Analysis:
A. ✅ Fits all the criteria.