Vita Asks Walter,a Cobbler and Shoe Salesperson,to Repair a Pair

Multiple Choice

Vita asks Walter,a cobbler and shoe salesperson,to repair a pair of work boots. There is no discussion of a price,and Vita and Walter do not sign any documents. After the repair,Walter hands Vita a bill. With respect to Vita's obligation to pay the bill,this is

A) an express contract.
B) an implied contract.
C) a quasi contract.
D) no contract.