What is the appropriate procedure to follow when a customer fails to sign the form provided by the investment adviser stating that he has received a copy of the investment adviser's brochure?
A) Proceed with the account, but make a supervisory person aware of this.
B) Proceed with the account; the signature is not required.
C) Don't do anything with the account until the customer's signature acknowledging receipt of the brochure is received.
D) Only unsolicited orders may be accepted until the signed receipt is received.
Answer: A