A stock’s price is generally adjusted downward by the amount of the declared cash dividend on the ex-dividend date, so B is correct. The ex-dividend date is the first day the stock trades without the right to receive the upcoming dividend. Investors who purchase on or after the ex-dividend date are not entitled to that declared dividend; the seller retains the right to receive it. Because new buyers are no longer receiving that cash distribution, the market typically reflects this by reducing the stock’s price by approximately the dividend amount (all else equal). This is a standard SIE-tested dividend timing concept.

The record date (choice C) is the date on which the company reviews its shareholder records to determine who is entitled to receive the dividend. It is a corporate bookkeeping cutoff and is not the date the market typically adjusts the price. The payment date (choice D) is when the company actually pays the dividend to shareholders of record; again, this is not when the stock generally drops by the dividend amount. Choice A is incorrect because “redemption date” applies to instruments like bonds, CDs, or redeemable fund shares—not common stock dividends.

This topic sits under corporate actions and dividend mechanics, and the SIE expects you to connect the sequence: declaration date (announced), ex-dividend date (price adjustment / eligibility cutoff for buyers), record date (company records), and payable/payment date (cash distributed). Understanding the ex-dividend date is crucial for customer communication, trade timing, and explaining why price may appear to “drop” even without negative news.