Geometry

Question Analysis:
This question involves identifying a prism by both its base shape and the orientation of its lateral faces.
The main focus is on recognizing a right prism with trapezoidal bases.

Key Concept Explanation:
A trapezoidal prism has trapezoid-shaped bases; if its lateral faces meet the bases at 90°, it is a right trapezoidal prism.

Step-by-Step Solution:
Base: isosceles trapezoid → trapezoidal prism.
Lateral faces: rectangles perpendicular to bases → right orientation.
Combine → right trapezoidal prism.

Option Analysis:
A: ✅ Correct.
B: Incorrect – oblique would have tilted lateral faces.
C: Incorrect ...