Ray Wished to Purchase a Motor Vehicle from Rita on Credit,but

Ray wished to purchase a motor vehicle from Rita on credit,but Ray was unemployed,and Rita was hesitant to sell to him for that reason.Ziggy,who was quite wealthy,said to Rita: "Sell Ray the automobile on credit,and if Ray does not pay you,I will."
-If Ziggy made the guarantee in writing,and signed the document,the guarantee would not be enforceable until Ray defaulted on a demand for payment by Rita.