Mary would like to dispose of some land that she acquired five years ago because she believes that it will not continue to appreciate. Its value has increased by $50,000 over the five-year period. She also intends to sell stock that has declined in value by $50,000 during the eight-month period she has owned it. Mary has four offers to acquire the stock and land: Buyer number 1: Exchange land. Buyer number 2: Purchase land for cash. Buyer number 3: Exchange stock. Buyer number 4: Purchase stock for cash.

Explain one relevant tax issue for Mary and describe the tax advantages and disadvantages of what she may be faced with.