In order to enhance sales from their present annual $35 million, ABC Company, a retailer, is considering more liberal credit standards. Presently, the firm has an average collection period of 30 days. It believes that with increasingly liberal credit standards, the following will result:
                                                                                         Credit Policy
                                                                                           A           B          C           D
Enhance in sales from previous level (in millions)                     $6.5      $4.8      $2.6       $1.8    
Average collection period for incremental sales (days)               45         60        90         150
Bad-Debt losses on incremental sales                                     3%         4%       6%         9%

The prices of its products average $30 per unit, and variable costs average $26 per unit. If the company has a before-tax opportunity cost of 20%, which credit policy should be pursued?