(B) Some experimentation that is now done on animals need not be done at all.
(C) Preparing pain protocols is not a time-consuming or costly procedure.
(D) Some surgical operations performed on infants are painful.
(E) Unalleviated pain after an operation tends to delay the healing process.
13. A company with long-outstanding bills owed by its customers can assign those bills to collection agency that pays the company a fraction of their amount and then tries to collect payment from the customers. Since these agencies pay companies only 15 percent of the total amount of the outstanding bills, a company interested in reducing losses from long-outstanding bills would be well advised to pursue its debtors on its own.
The argument depends on the assumption that
(A) a company that prusues its debtors on its own typically coliects more than 15 percent of the total amount of the long-outstanding bills that it is owed
(E) unless most of the customers of a company pay their bills, that company in the long run will not be profitable.