Answer:
c. $33,000
Step-by-step explanation:
The computation of the total amount of goodwill recognized is shown below:
Goodwill = Consideration paid + Fair value of non controlling interests - Fair value of net identifiable assets 
 where, 
Fair value of net identifiable assets = Book value of acquired company - Overvalued plant assets + Unreported identifiable intangible assets 
= $25,000 - $6,000 + $10,000 
= $29,000 
 So, the goodwill amount is 
= $40,000 + $22,000 - $29,000
= $33,000