Martine is scheduling five contractors (Contractors A through E) to do various tasks during Monday through Friday of the upcoming week. For each day, exactly one contractor will be scheduled to work, and each contractor's task will be completed on the day for which he or she is scheduled. The scheduling must conform to the following constraints.

• Contractor A must be scheduled to work on Monday.
• Contractor B must be scheduled to work exactly two days after Contractor A is.
• Contractor E must be scheduled to work exactly three days after Contractor C is.