If the cost-to-sales ratio of a shot of scotch priced at $4.50 is 20%, and the size of the shot is 1.5 oz., what is the effect on the drink's gross profit if a bartender consistently free pours a 2 oz. shot? O A. The gross profit on the drink decreases by approximately 8%. B. The gross profit on the drink decreases by 25%. C. The gross profit drops from $3.60 to $2.70. D. Gross profit can't be determined from the above information