Barney and Fred have an employment contract. Per their contract, Fred will pay Barney to hide the business' cash earnings as a means of avoiding taxation. The money that Barney is paid to hide is actually money that is subject to federal and state taxes, per the applicable statutes. Which statement is most accurate?

A) Barney and Fred do not have a valid contract because their agreement violates the law.

B) Barney and Fred do have a valid contract but their agreement violates the law.

C) Barney and Fred do not have a void contract because their agreement violates the law.

D) Barney and Fred do not have a voidable contract because their agreement violates the law.