The antifraud provisions of Rule 10b-5 of the Securities Exchange Act of 1934:
A. apply only if the securities involved were registered under either the Securities Act of 1933 or the Securities Exchange Act of 1934.
B. require that the plaintiff show negligence on the part of the defendant in misstating facts.
C. require that the wrongful act must be accomplished through the mail, any other use of interstate commerce, or through a national securities exchange.
D. apply only if the defendant acted with intent to defraud.
I can see how C is correct but why is D not correct as well? One requirement is Scienter, which appears to be defined in D. Am I missing something here?