A nurse is caring for a client diagnosed with HIV-I. The client's CD4+ cell count is 399/mm (0.399 × 109/L). What action by the nurse is best?

Counsel the client on safer sex practices/abstinence.

Encourage the client to abstain from alcohol.

Facilitate genetic testing for CD4+ CCR5/CXCR4 Co-receptors.

Help the client plan high-protein/iron meals.