Wells Fargo obtained a judgment of foreclosure on a house. The total indebtedness stated in the judgment was

$$207,141.$ The foreclosure sale was scheduled for a set time at the Hillsborough County Courthouse. Wells Fargo was

represented by a paralegal, who had attended more than $1,000$ similar sales. Wells Fargo's handwritten instruction sheet

informed the paralegal to make one bid at $$115,000,$ the tax$-$appraised value of the property. Because the first $"1"$ in the

number was close to the $"$$$,$"the paralegal misread the bid instruction as $$15,000$ and opened the bidding at that amount.

Martin, who was attending his first judicial sale, bid $$20,000.$ The county clerk gave ample time for another bid and then

announced $"$$$20,000$ going once, $$20,000$ going twice, sold to Martin. $..."$ The paralegal screamed, "Stop, I$\text{'}$m sorry, I

made a mistake!" The certificate of sale was issued to Martin. The sale:

Can be set aside based upon duress.

Cannot be set aside.

Can be set aside based upon undue influence.

Can be set aside based upon mistake.

Can be set aside based upon fraud.