Answer :
Sheila will earn 4 hours of overtime for the week, as she worked 4 hours beyond the standard 8-hour workday on Tuesday while working under the limit on Wednesday (option b).
To calculate how many hours of overtime Sheila will earn, we first need to determine the number of hours worked each day that exceed the standard 8-hour workday threshold for overtime. On Tuesday, Sheila worked 12 hours, so she worked 4 hours of overtime (12 hours - 8 hours = 4 hours). On Wednesday, she worked 5 hours, which does not exceed the 8-hour limit, so there are no overtime hours for that day.
Adding the overtime hours from Tuesday to the non-overtime hours from Wednesday, we see only Tuesday contributes to overtime. Therefore, Sheila will earn 4 hours of overtime for the week.
The correct answer to how many hours of overtime Sheila will earn is option b. 4.
