The correct option is - A (they can check the identification cards of golfers).
Explanation:
Price discrimination is generally a belief that consumers may be asked to pay either more or less based upon the various points on demographic features. They may also price according to the value of goods or services provided to them.
Thus, in the given case, in order to discriminate the price for the golf players, it is essential to check their cards identifying them as the residents of such place