King : Throne :: Rider : ? — Keep the “person → seat used in their role” relation and choose the correct item.

Introduction / Context:
“King : Throne” presents an archetypal role-to-seat mapping: the throne is the specific seat associated with a king’s station. We must select the equivalent specifically named seat for a rider.

Given Data / Assumptions:

• Throne is the king’s seat of office/ceremony.
• A rider mounts an animal or vehicle using specialized equipment.
• We seek the seat that fits the role precisely, not just any object associated with riding.

Concept / Approach:
The targeted relation is “role/person → named seat/equipment used for seating.” For riders, the correct seat is the “saddle” placed on a horse (or other mount). “Chair/Seat” are generic; “horse” is the animal, not the seat; “stirrup” is a foot support, not the seat.

Step-by-Step Solution:
Map king → throne (specific seat).Map rider → saddle (specific seat).Select “Saddle.”

Verification / Alternative check:
Equestrian equipment lists identify the saddle as the seating apparatus for riders.

Why Other Options Are Wrong:

• Chair/Seat: Too generic; not role-specific.
• Horse: The mount, not the seat.
• Stirrup: Foot support; not a seat.

Common Pitfalls:
Choosing an associated object (horse, stirrup) instead of the precise role seat.

Final Answer:
Saddle