Frank and Bob are equal members in Soxy Socks, LLC. When forming the LLC, Frank contributed $50,000 in cash and $50,000 worth of equipment. Frank's adjusted basis in the equipment was $35,000. Bob contributed $50,000 in cash and $50,000 worth of land. Bob's adjusted basis in the land was $30,000. On 3/15/X4, Soxy Socks sells the land Bob contributed for $60,000. How much gain (loss) related to this transaction will Bob report on his X4 return? A. $10,000 B. $15,000 C. $25,000 D. $35,000