A firm uses activity-based costing and has the following activity rates: $100 per machine hours, $500 per batch start, $5 per order. The firm has many customers. The following three customers are under review for profitability. Customer 1: Revenue: $24,000,$10,000 direct costs, 50 machine hours, 5 batch starts, 100 orders Customer 2: Revenue: $26,000,$20,000 direct costs, 20 machine hours, 8 batch starts, 200 orders Customer 3: Revenue: $29,000,$15,000 direct costs, 15 machine hours, 10 batch starts, 600 orders Which of these customers is LEAST profitable to the firm? Customer 1 is the LEAST profitable customer to the firm. Customer 3 is the LEAST profitable customer to the firm. Cannot be determined from this information. Customer 2 is the LEAST profitable customer to the firm