Speculation: choose the best example.

Given data

• Speculation involves assuming something is true based on incomplete or inconclusive evidence.
• We must identify the scenario driven by a conjecture, not by firm information.

Concept/Approach

Check which option relies on a guess rather than policy, direct experience, or thorough research.

Step-by-step reasoning
(A) Decision grounded in explicit policy; not speculation.(B) Expresses regret; no inference about unknown facts.(C) Conclusion supported by multiple credible sources; not speculation.(D) Theo infers a family death from tears alone → an assumption without solid proof → speculation.

Verification/Alternative

Option (D) fits the definition most closely: inference from a single emotional cue.

Common pitfalls

Labeling any inference as speculation even when strong evidence exists (as in option C).

Final Answer
Theo's guess about a family death (option D) is speculation.