Statement–Assumption (What Makes Winners Different?): Statement: “Winners don’t do different things; they do things differently.” Assumptions: I) The manner or method of execution (doing things differently) is crucial to success. II) The proverb “Slow and steady wins the race” is universally true and relevant here.

Introduction / Context:
The aphorism contrasts what is done with how it is done. It posits that success stems from distinctive approach, process, or execution rather than unique tasks. Our task is to identify the indispensable assumption behind this claim.

Given Data / Assumptions:

• Success variable: method/approach.
• Non-essential variable: novelty of the task itself.

Concept / Approach:
We apply the necessity test. The statement needs only the minimal claim that execution quality/form matters decisively; it does not require any unrelated maxims to be valid.

Step-by-Step Solution:
Assumption I: If method does not matter, the entire proposition collapses, since it explicitly grounds winning in “doing things differently.” Thus I is implicit.Assumption II: The proverb about being “slow and steady” is orthogonal; the statement neither mentions pace nor universality of that maxim. Hence II is not necessary.

Verification / Alternative check:
Negating I removes the core causal driver (approach), making the statement vacuous. Negating II leaves it untouched.

Why Other Options Are Wrong:
Only II, either/or, and neither all ignore the indispensable role of approach embedded in the sentence.

Common Pitfalls:
Injecting unrelated proverbs or moral lessons into an execution-focused claim.

Final Answer:
Only assumption I is implicit.