Owen owned Blackacre, a 100 acre vacant tract of farm land in the state of Rural. Owen's son, James, in need of money, purported to sell Blackacre to Ben for $50,000. James gave Ben a forged but facially valid deed which properly described Blackacre as a 100 acre tract of farm land in the state of Rural. Ben took possession of Blackacre and began farming 80 of the 100 acres of Blackacre. Ben never made any use of the other 20 acres, but he continued farming the 80 acres of Blackacre for 25 years until Owen brought suit to eject him. Assume the state of Rural has adopted a 20-year statute of limitations for actions brought to recover possession or title to real property. The court should decide that title to the 100 acre parcel now belongs to ________.
1) Owen, because Ben acquired title under a forged deed.
2) Owen, because Ben made no use of the other 20 acres of Blackacre.
3) Ben, because Owen is charged with constructive notice.
4) Ben, under the doctrine of constructive adverse possession.