Which of the Following Is Not an Assumption of Assignment

Multiple Choice

Which of the following is not an assumption of assignment problems?

A) The number of assignees and the number of tasks are the same
B) The objective is to minimize the number of assignments not made
C) Each task is to be performed by exactly one assignee
D) There is a cost associated with each combination of an assignee performing a task,
E) Each assignee is to be assigned exactly one task