In which of the following instances would the deadweight loss on the tax of airline tickets increase by a factor of nine?
A The tax on airline tickets increases from $15 per ticket $60 per ticket
B The tax on airline tickets increase from $20 per ticket to $90 per ticket
C the tax on airline tickets increased from $15 per ticket to $135 per ticket
D the tax on airline tickets increase from $20 per ticket to $60 per ticket