A nurse is caring for a client who is receiving acute care for the treatment of a substance use disorder.With which of the following actions is the nurse demonstrating the ethical principle of veracity?

Reinforcing information on the potential adverse effects of a medication with the client.

Encouraging the client to attend a daily exercise program on the unit.

Respecting the client's right to refuse to attend a group therapy session.

Maintaining the client's confidentiality about a substance use disorder.