In an action by Furrow against Quark for the reasonable value of the improvements that Furrow added to the farm, which of the following theories would best support Furrow's claim?
Quasi-contract, for benefits unofficiously and nongratuitously conferred upon Quark by Furrow. 
Tort, for conversion by Quark in retaking possession of the improvements. 
Breach of trust by Quark as trustee of a resulting trust of the improvements.
Breach by Quark of an implied-in-fact promise (manifested by his retaking possession of the farm and improvements) to compensate Furrow for the improvements