The following list shows totals for all accounts for four different companies: A, B, C, and D. In each case, one amount is omitted. A B C D Cash $100 $72 $? $ 20 Truck 200 130 71 200 Accounts 50 10 5 10 payable Bank loan 75 25 61 Common 175 50 100 stock Net income 20 6 10 A: $0 B: $122 C: $65