Pierre Sold a Parcel of Land for $50,000

Multiple Choice

Pierre sold a parcel of land for $50,000.He received $10,000 this year and signs a contract to receive four additional payments of $10,000 each plus interest.If Pierre had a basis in the land of $10,000 and incurred $2,500 in selling expenses,what is his gross profit percentage?

A) 75%.
B) 25%.
C) 100%.
D) 10%.