A) 4.16 weeksThe firm holds 4.16 weeks of supply. Weeks of supply is determined by using the following formula:Weeks of supply = inventory investment/average weekly cost of goods soldIn this case, as indicated in the question, the total inventory investment is $2 million. To calculate the average weekly cost of goods sold you take the total annual cost of goods sold (in this case $25 million as indicated in the question stem) and divide that by 52 weeks. Thus, the average weekly costs of goods sold is $ .481 million (25/52 = .481).Therefore,Weeks of supply = inventory investment/average weekly cost of goods soldWeeks of supply = 2/.481Weeks of supply = 4.16