Robin exchanged land with FMV of $50,000, basis $47,000 with Batman for land with FMV of $45.000 in a like-kind exchange. Batman also assumed Robin's $5,000 mortgage on the land. What is Robin's realized gain (loss) and deferred gain/loss on the exchange? A) $5,000 gain realized, $5,000 gain deferred B) $3,000 gain realized, $2,000 gain deferred C) $3,000 gain realized, $0 gain deferred D) $3,000 gain realized, $5,000 gain deferred