Igor,an Agent for Jules,signs an Agreement with Kali on Jules's

Igor,an agent for Jules,signs an agreement with Kali on Jules's behalf but ne?glects to tell Jules that the agreement requires the payment of a certain tax.The government prosecutes Jules for failing to pay the tax.Jules is

A) liable,because Igor's knowledge is imputed to Jules.
B) liable,because Kali's knowledge is imputed to Jules.
C) not liable,because Igor did not tell Jules about the tax.
D) not liable,because Kali did not tell Jules about the tax.