"A customer calls a registered representative to sell 500 shares of an over-the-counter stock and tells the representative that he wants the trade done privately - not in the public market. This is:"

Not allowed, FINRA prohibits private securities transactions. Trading must be done with the knowledge of your firm in the public securities markets

Explanation:

Since in the question it is mentioned that call of the customer registered the representative for selling off  500 shares over the counter stock and the transactions should be done in privately

here according to the FINRA, it prohibits the transactions in which the person deals in private securities also there should be knowledge in the firm for the securities market held in market

answer///parietal;

answer: in the short-run firms will respond by raising the price of turkey.

explanation: initially the long-run equilibrium is at a price of $5 per pound of turkey and a quantity of 50 million pounds per year. now, when webmd claims that a protein found in turkey will increase your expected lifespan by 4 years. the consumers demand for turkey will increase at every price shifting the demand curve to the right from d1 to d2. while, there will be no change in the supply curve in the short-run as it is not possible for producers to adjust supply so quickly. as a result the new equilibrium will occur at a higher price and a higher quantity of turkey.

thus, in the short run firms will respond by increasing the price of turkey, selling more quantity at a higher price and earning economic profits.