Which of the following statements is true of the rights of an assignee to a contract? an assignee cannot be assigned the rights to a contract if the assignment decreases the obligor's risk or duties. an assignee is well-protected against any defenses for nonperformance the obligor may plan to raise. an assignee cannot decline an assignment under any circumstance. an assignee cannot be assigned the rights to a contract when the contract is personal in nature.

Asupermarket has been experiencing long lines during peak periods of the day. the problem is noticeably worse on certain days of the week, and the peak periods are sometimes different according to the day of the week. there are usually enough workers on the job to open all cash registers. the problem is knowing when to call some of the workers stocking shelves up to the front to work the checkout counters. how might decision models the supermarket? what data would be needed to develop these models?