The correct option is
A 8,400
Hidden Goodwill is that amount which is directly not mentioned in the question and has to be found using various possibilities.
Hidden Goodwill is calculated using the formula given below:
HiddenGoodwill=Totalcapital−Partner′sCapital
Total capital is calculated using the formula given below:
TotalCapital=Newpartner′scapital÷Hisshare
Substitute values in the above equation
TotalCapital=Rs16,800÷14=Rs16,800×4=Rs67,200
Substitute values in the primary equation
HiddenGoodwill=Rs67,200−(Rs28,000+Rs14,000+Rs16,800)=Rs67,200−Rs58,800=Rs8,400
Thus hidden goodwill is Rs8,400.