An Adult Sends an E-Mail to a Child Soliciting Sex

An adult sends an e-mail to a child soliciting sex. If the adult is arrested, what must the prosecutor prove to convict the adult of cyber-solicitation?

A) Only that the adult sent the e-mail message.
B) That the adult sent the e-mail message and knew the intended recipient was under the age of consent.
C) That the adult sent the e-mail message knowing the intended recipient was under the age of consent and that the recipient read the e-mail message.
D) That the adult sent the e-mail message knowing the intended recipient was under the age of consent, the recipient read the e-mail message, and responded to the e-mail.
E) none of the above