Suppose that a buyer pays $20 to purchase one unit of good X. If the highest price the buyer was willing and able to buy good X for was $25 and the lowest price the seller of good X was willing to sell the unit of good X for was $17, then the consumers' surplus is ______________ and producers' surplus is _________________. a.$3, $5 b.$8, $3 c.$5, $3 d.$5, $8