Suppose management decides to relax the policy about stockouts on a month-to-month basis. Instead, they just want to make sure that they end the entire five-month planning period with a zero balance on inventory. They have never worked this way before and don't have an idea what it costs to stockout, so they assign a value of $0 for each unit stocked out. What is the optimal planning period cost?

$40,225

$45,220

$45,520

$42,250