The following procedures were recently implemented at the health station, inc. for each procedure, indicate whether the internal control over cash represents (1) a strength or (2) a weakness. a. all mail is opened by the mail clerk, who forwards all cash remittances to the cashier. the cashier prepares a listing of the cash receipts and forwards a copy of the list to the accounts receivable clerk for recording in the accounts. b. the accounts payable clerk prepares a voucher for each disbursement. the voucher along with the supporting documentation is forwarded to the treasurer's office for approval. c. at the end of each day, all cash receipts are placed in the bank's night depository. d. the bank reconciliation is prepared by the cashier, who works under the supervision of the treasurer.

Richardson hired j.c. flood company, a plumbing contractor, to correct a stoppage in the sewer line of her house. the plumbing company's 'snake' device, used to clear the line leading to the main sewer, became caught in the underground line. to release it, the company excavated a portion of the sewer line in richardson's backyard. in the process, the company discovered numerous leaks in a rusty, defective water pipe that ran parallel with the sewer line. to meet public regulations, the water pipe, of a type no longer approved for such service, had to be replaced either then or later, when the yard would have to be excavated again. the plumbing company proceeded to repair the water pipe. though richardson inspected the company's work daily and did not express any objection to the extra work involved in replacing the water pipe, she refused to pay any part of the total bill after the company completed the entire operation. j.c. flood company then sued richardson for the costs of labor and material it had furnished. (c) for what, if anything, should richardson be liable? explain."