Verification of truth — essential element: A run (race) must have which of the following?

Introduction / Context:
We are asked to identify the element without which a run/race cannot exist. The key is to focus on definitional necessity, not optional enhancements.

Given Data / Assumptions:

• “Run” here denotes a competitive race event.
• Official roles (umpire/referee), spectators, and prizes vary by level and context.

Concept / Approach:
By definition, a race is a competition among participants over a distance or time. Without participants (competitors), there is no race.

Step-by-Step Solution:
Check necessity: competitors are indispensable; officials, audience, and even awarding victory depend on participation and rules.Therefore, “Competitors” uniquely satisfies the “must have” condition.

Verification / Alternative check:
Consider time-trials or informal races—still require competitors (even in staggered starts).

Why Other Options Are Wrong:
Umpire (not essential in informal settings), spectators (can be zero), victory (a tie or practice run may forgo prize formalities).

Common Pitfalls:
Equating organized sports features with definitional requirements.

Final Answer:
Competitors