On June 15, Moreno Furniture Repair extended an offer of $26,000 for land that had been priced for sale at $39,000. On June 30, Moreno Furniture Repair accepted the seller’s counteroffer of $31,000. What was the percentage discount applied when the counteroffer was accepted?
a) 20%
b) 25%
c) 30%
d) 35%