Answer:
e. under-applied by $4,000
Explanation:
The overhead rate was calcualte considering labor cost:
144,000 / 240,000 = 0.60
Each dollar of labor cost applies 60 cent of overhead
applied overhead:
$220,000 labor cost x 0-60 each = 132,000 applied overhead
now we compare against the 136,000 actual overhead
as we didn't met the value and fell short, we have underapplied the overhead.