You participated in a pump and dump scheme. Later on a representative from the Securities and Exchange Commission contacts you and requests details in respects to a trade of ABCD shares and other info about the account. According to the CFA Ethic Code and Standards:

a$.$You have not violated the integrity of Capital Markets and should disclose the requested information. b$.$You violated the integrity of Capital Markets and should disclose the requested information. c$.$ you have violated the integrity of Capital Markets and should not disclose the requested information.