Final answer:
Choice C) A taxpayer's property is destroyed by a natural disaster satisfies the definition of an involuntary conversion.
Step-by-step explanation:
An involuntary conversion refers to a situation in which a taxpayer's property is destroyed or taken without their consent, and they receive compensation for this loss. In the given scenario, the choice that satisfies the definition of an involuntary conversion is C) A taxpayer's property is destroyed by a natural disaster.