Answer:
Eleanor has the lowest opportunity cost of completing the task. Opportunity cost of $80.
Step-by-step explanation:
opportunity cost calculations
Eleanor; she earns $160 per hour and can complete the task in 30 minutes therefore we convert the minutes to hours 30/60 = 0.5hours
$160 *0.5hours = $80
Darnell ; he earns $25 per hour and it will take him 5 hours to complete the task , his opportunity cost is $25 *5 =$125.