[Solved] Giving the purchaser the right to sell the underlying security at a prespecified price is a A)put option. B)call option. C)naked option. D)futures option. Proportion: Represents a part or fraction of a whole, often expressed as a percentage or ratio. Sample Size: The quantity of observations accumulated in a sample originating from a broader population. Population Proportion: A measure that represents the fraction of the total population possessing a certain characteristic or attribute. Maximum Allowable Error: The largest error that is tolerated in the results of a measurement, maintaining the results within an acceptable range.