Answer:
c-all be unfavorable.
Explanation:
Variance is defined as the difference that exists between an expected outcome and what actually happens.
When the frequency of an event is higher than predicted then it is a positive variance that is favourable all round.
However if the frequency of an event fails to meet expectations there is a negative variance.
In the given scenario a company's planned level of activity is 1,100 hours and its actual level of activity is 1,000 hours.
This shows a negative variance that is unfavourable to in terms of mixed expenses.