You receive a phone call from an attorney who says that she is representing a client of yours. The client is the defendant in a court case, and the attorney asks that you send her test data and other information from the client's record that is needed to assist with his defense. You should:
a) Comply with the request and provide the attorney with the requested information.
b) Inform the attorney that you cannot release the information without the client's explicit written consent.
c) Share only non-confidential information with the attorney to protect the client's privacy.
d) Refuse to provide any information, citing confidentiality concerns.