Geometry

Question Analysis:
Asks for pyramid type with non-centered apex and triangle base.
The focus is on the apex location and base shape.

Key Concept Explanation:
Triangular base + apex not above center = oblique triangular pyramid.

Step-by-Step Solution:
Base is triangle
Apex not centered → oblique
Faces not congruent → not regular

Option Analysis:
A. ✅ Fits all conditions
B. Apex not centered → ...