The loan office in a bank receives from various parties requests to investigate the credit status of a customer. each credit request is identified by a request id and is described by a request date and requesting party name. the loan office also received results of credit checks. a credit check is identified by a credit check id and is described by the credit check date and the credit rating. the loan office matches credit requests with credit check results. a credit requests may be recorded before its result arrives: a particular credit result may be used in support of several credit requests. draw an erd for this situation. now, assume that credit results may not be reused for multiple credit requests. redraw the erd for this new situation using two entity types and then redraw it again using one enty type. which of these two versions do you prefer, and why?