Assume that Spruce Bank has $1,000 to invest in each loan of the validation sample . If Spruce Bank does not invest in a loan it keeps the money in a risk free investment at 3% a year for 3 years ( ignore the time value money). If spruce invest in a loan that eventually repays , it receives 10% a year for 3 years . If Spruce invest in a loan that eventually defaults, Spruce loses 65% of the amount of the loan . Fill the payoff Matrix . Which model should be used?